Monsters vs. Aliens is a 2009 American computer-animated science fiction comedy film produced by DreamWorks Animation and distributed by Paramount Pictures. It was DreamWorks Animation's first feature film to be directly produced in a stereoscopic 3-D format instead of being converted into 3-D after completion, which added $15 million to the film's budget. The film was directed by Conrad Vernon and Rob Letterman, and features the voices of Reese Witherspoon, Seth Rogen, Hugh Laurie, Will Arnett, Kiefer Sutherland, Rainn Wilson, Paul Rudd, and Stephen Colbert. It is DreamWorks Animation's 18th feature film.
