Premise: Knocked Up is a 2007 American romantic comedy film written, directed, and co-produced by Judd Apatow, and starring Seth Rogen, Katherine Heigl, Paul Rudd, and Leslie Mann. It follows the repercussions of a drunken one-night stand between a slacker and a just-promoted media personality that results in an unintended pregnancy.
Hypothesis: Mann is an actress in Knocked Up.