In this exclusive clip from the Los Angeles Film Festival (LAFF) drama "Comet," Emmy Rossum berates Justin Long for not understanding why women don't like cockroaches (it involves vaginas). 

Directed by first timer Sam Esmail, "Comet" stars Emmy Rossum (in a role very far from her "Shameless" persona) and Justin Long as a couple who have been together for six years, and the problems they face in a parallel universe. In the clip, Long and Rossum share a waltz and talk about the nature of commitment -- cockroaches are a sort of lead-in. 

"Comet" will premiere at LAFF June 13th.