The concept of a human Buzz Lightyear, who exists in a fictional universe within a fictional universe, was first introduced in the 2000 direct-to-video film Buzz Lightyear of Star Command: The Adventure Begins, which was then used as the pilot to the TV series Buzz Lightyear of Star Command (2000–2001). The film follows Buzz Lightyear (Evans) operating as a space ranger who, after being marooned on a hostile planet with his commander and crew, tries to find a way back home while encountering a threat to the universe's safety. It stars Chris Evans as the voice of the titular character, with Keke Palmer, Peter Sohn, Taika Waititi, Dale Soules, James Brolin, and Uzo Aduba in supporting roles. The film was directed by Angus MacLane (in his feature directorial debut) and produced by Galyn Susman, from a screenplay and story written by MacLane and Jason Headley, both of whom co-wrote the latter with Matthew Aldrich. Lightyear centers on the character Buzz Lightyear, who in this film is human and not a toy. The film is a spin-off of the Toy Story film series, but does not take place in the same fictional universe as them rather, it is presented as a film that some of the characters in the main Toy Story films have seen.

Lightyear is a 2022 American computer-animated science-fiction action-adventure film produced by Walt Disney Pictures and Pixar Animation Studios, and distributed by Walt Disney Studios Motion Pictures.

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