She is best known for writing popular romantic comedy films such as Never Been Kissed, He's Just Not That Into You, Valentine's Day and How to Be Single.
Kohn's first co-writing and directing feature film was the 2018 comedy, I Feel Pretty, starring Amy Schumer and Michelle Williams.
[2] Kohn and her frequent collaborator Marc Silverstein met in the MFA program at the USC School of Cinematic Arts in Los Angeles, California.
[3] In May 2019, New Line Cinema acquired film rights to the television series Three's Company with Kohn and Silverstein to write the screenplay.
Robert Cort and Don Taffner Jr. will produce the film and plan to have it set in mid-1970s Santa Monica.