When Worlds Collide is a 1951 American science fiction disaster film, produced by George Pal, directed by Rudolph Maté, and starring Richard Derr, Barbara Rush, Peter Hansen, and John Hoyt. It was distributed by Paramount Pictures. The film is based on the 1932 science fiction novel of the same name, co-written by Philip Wylie and Edwin Balmer. The plot concerns the coming destruction of the Earth by a rogue star called Bellus and the desperate efforts to build a space ark to transport a group o