sentences:  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.The film was released on March 27, 2009, in the United States in RealD 3D, IMAX 3D, and 4DX, grossing over $381 million worldwide on a $175 million budget.Although not successful enough to be followed by a sequel, the film started a franchise consisting of a short film, "B.O.B.