Instruct: Classify a given Amazon review as either positive or negative.
Query: One of the all time Sci Fi classics.

Though a bit dated, being roughly sixty years old, this is one of the all time Sci Fi classics, directed by the great George Pal. It is not a movie about giant bugs or evil aliens, nor is it really a movie about world's colliding, any more than Cassablanca is a movie about a guy who owns a pub.When World's Collide goes where few sci fi 'end of the world' movies of its day went, to deal with the Human Element of who gets a chance at survival and who does not. Though the plot is a bit obvious by today's standards this remains serious sci fi in the style of Ray Bradbury and Kurt Vonnegut, if not quite up to their standards.