Kissing on the Mouth is a 2005 American film directed by Joe Swanberg. The small cast served as the only crew, with the film featuring real interviews with recent college graduates and a documentary approach to the graphic sex and conversations. It is considered one of the original films of the mumblecore movement.
Ellen is sleeping with her ex-boyfriend while trying to ignore the fact that he's looking for more than just sex. Her roommate, Patrick, isn't helping matters with his secretive and jealous behavior.