Cannon won the Writers Guild of America Award for Best Comedic Series for her work on 30 Rock three times. In 2008, she won a Peabody Award for her work on the show. In 2010, Cannon was nominated for an Emmy Award for Outstanding Writing in a Comedy Series. During this time, Cannon also worked as a co-producer on the feature film, Baby Mama (2008).
Cannon's first produced feature screenplay was the a cappella comedy Pitch Perfect (2012). She wrote and co-produced the film's sequels, Pitch Perfect 2 (2015) and Pitch Perfect 3 (2017).
She made a cameo in Pitch Perfect 2 (2015) and also appeared in the comedy How to Be Single (2016), starring Rebel Wilson and Dakota Johnson.
Cannon made her directorial debut with Blockers. The film was released by Universal Pictures on April 6, 2018.
