The second consecutive film written by Peter Baynham to have the name Arthur in its title, the first being Arthur starring Russell Brand. 

The toy that Steve steps on towards the end of the film is Shaun the Sheep, another famous Aardman character. 

Grandsanta says that he is 136 years old. But if he were 136 years old, he would not have been able to be Santa for 70 Christmases and then see his son, the current Santa, complete 70 Christmases as Santa.

Michigan was chosen to film this movie by director Shawn Levy because he was blown away by the Model T Automobile plant in Highland Park near Detroit. He felt it was the perfect set for the first fight scene called Crash Palace in the film. No other location he visited in New Mexico, Los Angeles, or Georgia came close. 

The third film of director Shawn Levy to be released in the IMAX format. The other two are Night at the Museum and Night at the Museum: Battle of the Smithsonian. 

Much of the robot boxing fights were motion-captured using professional boxers, supervised by Sugar Ray Leonard. 

In an apparent nod to Rocky, the world champion robot is named "Zeus", while in 'Rocky', the champion is named "Apollo" Creed. In mythology, Apollo is the son of Zeus. 

In an obvious nod to the iconic game "Rock'em, Sock'em, Robots", during the Atom/Zeus fight, Mashido assumes manual control of Zeus and grabs two simple joysticks and moves them back and forth operating Zeus exactly as done in the board game. 

The film is based on "Steel" - a 1956 short story by I Am Legend author Richard Matheson. It was also made into an episode of The Twilight Zone called Steel. 

The girls who ask to pose for a picture with Ambush are director 'Shawn Levy''s daughters. 

As announced at the rodeo in the beginning of the movie, director Shawn Levy has confirmed that the film takes place in 2020. He stated in an interview: "The whole reason it's 2020 and not further in the future is because I knew this movie was going to be an underdog story and I didn't want the distant futurism of extreme sci-fi. I wanted the world to feel really familiar, so that the characters would feel really relatable. The cell-phone we used five or ten years ago looks different from today, but a diner still looks like a diner." 

Each of the robots were built both in real life and CGI. For certain shots with animatronics, they were controlled by more than 20 puppeteers. 

Midas' Mohawk hairstyle is a nod to "Clubber" Lang, Mr.T's character in Rocky III. 

All video cameras used by the press are Red Epics, most with 3D lens attachments. 

The opening scene at the fairground features a semi tractor with a cattle-hauling trailer which belongs to "Ron Smith Trucking", Breckenridge, MI. 

Microsoft product placement: "Xbox 720" advertisement displayed in the fight stadium. 

The Generation 1 robot boxer head seen in the junkyard is the head of a Rock'em Sock'em Robot game robot. 

Charlie Kenton's idea to wear down Zeus's power supply by allowing him to repeatedly land blows on Atom was in fact a technique used by real life professional boxer Muhammad Ali. Nicknamed the 'rope-a-dope', Ali utilised the strategy to tire fellow boxer George Foreman, a much stronger opponent than himself and eventually gain victory. Ali famously angered Foreman with phrases such as "Is that all you got, George?" during the fight, mirrored in the film by Kenton's taunting hand gesture. 

This movie marks the fifth collaboration between stars Antonio Banderas and Salma Hayek. They previously worked together in past films such as Desperado, Frida, Spy Kids 3-D: Game Over, and Once Upon a Time in Mexico. 

The main character, Puss (voice by Antonio Banderas), makes a "P" as his signature; a signature very similar to the "Z" El Zorro makes. Antonio Banderas played El Zorro in The Mask of Zorro and The Legend of Zorro. 

Antonio Banderas participated in a viral marketing event for the film by posing in photos of himself at a screening surrounded by cats. 

Mother Goose appears in the film. "Puss in Boots" was originally published as a story in the "Mother Goose Fairytales" by Charles Perrault. 

Amy Sedaris, who voices Jill, also voiced Cinderella in Shrek the Third. 

Though it broke the box office record of the highest-grossing Halloween weekend gross of all time (previously held by Saw III), its debut was the worst for a Dreamworks Animation film since Flushed Away. However, its second weekend gross gave it the record for the smallest non-holiday second weekend drop for a film in a saturated release of 2500 theaters or more. 

One of the women of San Ricardo describes Puss's boots as being made of soft, Corinthian leather. This is a reference to the Chrysler Cordoba commercial of 1975 starring Ricardo Montalban. He described the seats as being made of "soft, Corinthian leather". 

Zac Efron was originally cast as Ren, but he pulled out in March 2009. 

Julianne Hough beat out several favorites including Hayden Panettiere, Miley Cyrus and Amanda Bynes for the part of Ariel. 

Kenny Ortega was originally stated to direct, but he pulled out following budget constraints and creative differences. 

Chace Crawford, who had been cast in the lead after Zac Efron left the project, pulled out of the movie in April 2010. 

Thomas Dekker was considered to play Ren. 

Was filmed at R.L. Osborne High School in Marietta, Georgia. 

Craig Brewer turned down the director's chair twice. 

Kevin Bacon was given the script, but could not find a role he was willing to play. One particular role originally written for him was Ren's deadbeat father. However, he gave Craig Brewer his blessing. 

Julianne Hough, who plays one of the main characters (Ariel Moore) has a brother, Derek Hough, who starred as the lead character (Ren McCormack) in Footloose: the Musical. 

Miles Teller had played his on-screen role of Willard in a high school version of "Footloose: The Musical".
 
Unlike the original, Kenny Wormald performed most of his own dance moves due to his dancing background. 

The film is dedicated to the original 'Footloose' (1984) director, Herbert Ross. Not only in the end credits, but the cop who pulls over Ren has "H. Ross" on his name tag. He is credited as Officer Herb. 

Kenny Wormald received the script from the musical instead of a draft from Craig Brewer before accepting the role. 

Originally envisioned as an adaptation of the Broadway musical. 

Craig Brewer wanted to be a filmmaker after seeing the original Footloose. He loved the movie so much he recorded the audio and listened to it while walking. 

Although it is pretty rare, there have been individual towns or counties in the U.S. that have forbidden public dancing by law. For instance, in 1980, People Magazine ran a story about students at Elmore City High School in Elmore City, Oklahoma, who had to lobby the town's and school's officials for permission to have a prom. They were successful, and their prom was the first legal public dance in Elmore City since the town's 1861 founding. The plot of both this movie and its source, 1984's Footloose, were loosely based on Elmore City's story. 

Reverend MacCormack is obsessed with the children's welfare at "unsupervised dances." Yet in the climactic scene, there are at least two adults present at the dance. 

Director Cameo
 Craig Brewer:  His boots are seen dancing in the opening credits when the words "A Craig Brewer Film" appears. 

When Steven Soderbergh was still supposed to direct, he cast Brad Pitt and Demetri Martin in the lead roles and had already shot interview scenes with baseball players Lenny Dykstra, Mookie Wilson and Darryl Strawberry to be included in the film. 

During pre-production, director of photography Adam Kimmel was arrested in Connecticut on sexual assault and weapons and explosives possession charges. He was replaced by Wally Pfister. 

Production of the movie was set to begin on June 22, 2009, but it was surprisingly dropped by Columbia Pictures. Studio co-chairman Amy Pascal axed the movie after objecting to changes which original director Steven Soderbergh made to Steven Zaillian's script. 

The "Peter Brand" character was originally going to be named Paul DePodesta, who was Billy Beane's assistant at the time (he later served as Dodgers' GM and was employed by the Mets at the time of the film's release). Demetri Martin was originally cast for this role. However, DePodesta, who visited the set, objected to his portrayal as a pure stats nerd, and so the character name was changed. By the time this was done, Jonah Hill had been cast in the role. 
In the scene with Billy and the scouts where he mentions Scott Hatteberg, the board behind his head reads "Pratt, C." on a yellow tab. Hatteberg was played by Chris Pratt. 

Bobby Kotick, President, CEO and a director of Activision Blizzard portrays Stephen Schott, the owner of the Oakland Athletics in the film. 

At one point, we hear that Miguel Tejada has struck out to end a game. In the original book, Tejada's free swinging ways and relatively high strikeout rate was something of a point of contention, with the Dominican shortstop telling Beane and other Athletics' members that "You can't walk your way off the island". 

Several of the actors playing the ballplayers have baseball experience. Casey Bond spent time in the Giants' organization, Stephen Bishop played for three years during the '90s (including one season where he played with David Justice, who he portrays in the film),Royce Clayton played 17 years in MLB and Derrin Ebert played five games for the Braves in 1999. 

Of all the Oakland players from the season represented in the movie (2002), only one played for Oakland in the season that the movie premiered (2011): Mark Ellis (and he was traded away in the middle of the season). 
Despite suggestions in the movie that Hatteberg was a bad-fielding first baseman, he ended the year with a fielding percentage (.994) higher than the league average for his position (.993). 

Bill James, noted as the statistical influence for the main characters' analysis, is regarded by many to be the father of sabermetrics. This study of advanced baseball statistics is named after the Society for American Baseball Research (SABR), an organization to which James and other sabermetrics pioneers belong. The film puts a heavy emphasis upon on-base percentage (OBP), though concepts like on-base-plus-slugging-percentage (OPS), now a widely-accepted measure of a player's hitting ability, are not mentioned. Concepts like runs created (RBIs plus runs scored), ERA+ and others widely used by statisticians are also not mentioned, perhaps owing to their increased acceptance in the years since the events portrayed in the film. 

Bennett Miller told a screening audience that A's assistant GM Paul DePodesta did not wish to have his real name used in the movie, but was very generously helpful during its making. While the filmmakers had no obligation to change his character's name (to Peter Brand), they did so willingly. 

David Justice is played by Stephen Bishop, a former pro baseball player. Bishop was a career Minor Leaguer, and as a Braves prospect was nicknamed Young Justice due to his physical resemblance and similar playing style to David Justice. 

The Oakland A's set the new American League record for consecutive wins, with 20. The all-time Major League record is 26, set by the New York Giants in 1916, including one tie. Without ties, the record belongs to the 1935 Chicago Cubs (21 straight wins).