When Worlds Collide
- Genre: Fantasy, Sci-Fi
- Director: Rudolph Maté
- Producer(s): George Pal
- Writer(s): Sydney Boehm
- Length: 1h 21m
Cast
Barbara Rush
as Joyce Hendron
Hayden Rorke
as Dr. Emery Bronson
Sandro Giglio
as Dr. Ottinger
Richard Derr
as David Randall
Leonard Mudie
as British U.N. Representative (uncredited)
Peter Hansen
as Dr. Tony Drake
Larry Keating
as Dr. Cole Hendron
John Hoyt
as Sydney Stanton
Judith Ames
as Julie Cummings
Stephen Chase
as Dr. George Frye
Frank Cady
as Harold Ferris
James Congdon
as Eddie Garson (uncredited)
Frances Sandford
as Alice (uncredited)
Queenie Smith
as Matron with Cigarette (uncredited)