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Throughout the movie it is hinted that Mr. Potato Head is and has always been jealous of Woody. In the staff meeting scene, Mr. Potato Head mentions that Woody has been Andy's favorite toy since Kindergarten. When Woody and toys meet Buzz Lightyear, Mr. Potato Head insults Woody by saying that his pull string sound box sounds as if a "car ran over it". Mr. Potato Head mocks Woody by suggesting that Andy will find a special place for Andy in the attic. When Buzz accidentally gets knocked out of the window, Mr. Potato Head confronts Woody accusing of him pushing Buzz out of the window and asks Woody if he will also push him out of the window when Andy starts playing with him more and threatens to hang him. When the toys wrongly assume Woody ripped off Buzz's arm, Mr. Potato Head hopes that Sid will pull out his sound box and Mr. Potato Head has the toys throw Woody off the moving truck when Woody tosses RC out of the moving van to rescue Buzz, thinking Woody is doing the same thing to RC like he did to Buzz.
Sid Phillips is said to be inspired by a former Pixar employee of the same last name who was known to disassemble toys and use the parts to build bizarre creations.
This was the first animated film in Oscar history to be nominated for a Best Original Screenplay Academy Award.
When Woody is sitting on the bed talking with Slinky, there is a drawing of him on the wall behind them. This is actually an early sketch of the Woody character.
Billy Crystal was originally offered the chance to voice Buzz Lightyear, but declined. After seeing the finished film, he said the decision was the biggest mistake of his career. Upon learning this, John Lasseter telephoned Billy's house to offer him the role of Mike Wazowski in Monsters, Inc. (2001). Billy's wife answered the telephone and said "John Lasseter wants to speak to you". Billy took the telephone from his wife and said "Yes".
The animation team perfected the movement of the toy soldiers by nailing a pair of sneakers to a sheet of wood and trying to walk around with them on.