[1][2] Gerson contributed material to Chicken Little, Cars, Meet the Robinsons, Up, Inside Out and Zootopia, as well as television shows including Misguided Angeles, Big Wolf on Campus and Something So Right.

[7] Gerson grew up in New York on the Upper West Side and attended the Ethical Culture Fieldston School before studying at Cornell University, where he was a member of the Sigma Pi fraternity, Mu chapter.

[9] Gerson described writing his first film, Monsters, Inc., as a highly collaborative process: "I would sit with Pete Docter and David Silverman and we would talk about a scene and they would tell me what they were looking for.

"[8] At an interview with Baird at the premiere, Gerson again stressed the importance of collaboration and development: We write a version of the script...and then we blow it to bits, we get in there with the Pixar brain trust, and they just smash it apart, and then you rebuild it and you do that like six, seven times.

[15]Roy Conli, who produced Big Hero 6, described his and Baird's approach to writing the film as being "to find that line that was emotional and not damaging.

[13] Gerson also took small voice parts in some of his films, including Monsters, Inc. and Big Hero 6, often as minor characters such as a janitor or desk sergeant.

His contribution to Monsters, Inc., the janitors Smitty and Needleman, began as guide vocals which director Pete Docter liked so much he kept in the final mix.