Also starring : Craig Stevens, William Hopper, Alix Talton, ...

Movie Plot : A spacecraft which returns from the first manned flight to Venus, crashes into the sea and releases a small monster that accidentally crawled aboard. The monster however proves to be a dangerous Ymir, and when the animal becomes an adult, it threatens to attack Rome.

Genre : Science Fiction

Also starring : William Hopper, Joan Taylor, Frank Puglia, John Zaremba, Thomas Browne Henry, Tito Vuolo, Jan Arvan, Arthur Space, Bart Braverman, ...

Also starring : Ann Doran, Beverly Long, Corey Allen, Dennis Hopper, Edward Platt, James Dean, Jim Backus, Natalie Wood, Nick Adams, Rochelle Hudson, ...

Also starring : Alan Curtis, Arthur Kennedy, Barton MacLane, Cornel Wilde, Donald MacBride, Frank Mayo, Henry Hull, Henry Travers, Humphrey Bogart, Ida Lupino, ...

Also starring : Alan Hale, Dennis Morgan, Dick Foran, Emmett Vogan, Frank McHugh, Frank Wilcox, George Brent, Guinn 'Big Boy' Williams, Harvey Stephens, Henry O'Neill, ...

Also starring : Addison Richards, Alan Baxter, Alan Hale, Charles D. Brown, Charles Middleton, David Bruce, Edmund Cobb, Edward Peil Sr., Emmett Vogan, Errol Flynn, ...

Also starring : Bette Davis, Donald Crisp, George Brent, James Stephenson, Jane Bryan, Janet Shaw, Jerome Cowan, Louise Fazenda, Miriam Hopkins, Rand Brooks, ...