Jacob Kasdan is an American filmmaker and actor. He is best known for directing Walk Hard (2007), Bad Teacher (2011), Sex Tape (2014), Jumanji: Welcome to the Jungle (2017) and Jumanji: The Next Level (2019).

Walk Hard: The Dewey Cox Story is a 2007 American comedy film directed by Jake Kasdan, and written by Kasdan and co-producer Judd Apatow. It stars John C. Reilly, Kristen Wiig, Tim Meadows and Jenna Fischer. A parody of the biopic genre, Walk Hard is the story of a fictional early rock and roll star played by Reilly.