Help with tracking down the name of an old sci fi movie

[quixotic]

My dad is looking for the name of an old movie, he thinks it was made 1950-1960s, about an alien onboard a craft with humans who are trying to get back to earth and they keep moving further up into the ship/onto different levels to get away from the alien but it keeps persuing them, think in the end the alien gets killed and they make it back to earth but that's all he seems to remember from it so I apologise that it's quite vague, this is just a shot in the dark..

[sylverpenny]

Hi quixotic, The movie doesn't sound familiar but here's a website that might help. Hope you find it.

http://www.classicscifi.com/

Penny

[Hobbit]

There are so many like this, but it does sound a bit like This Island Earth.

http://www.davidszondy.com/future/Dystopias/This%20Island%20Earth%2001.jpg

(And I love the name : Rex Reason!) :)

Here's the alien:

http://irishgothichorrorjournal.homestead.com/new_20this_20island_20earth_20morrow_20THIS_ISLAND _EARTH-13.jpg


Mark

[Viti]

I believe it is It! The Terror from Beyond Space. Not a bad movie as I remember it. A precursor to Alien.

http://www.imdb.com/title/tt0051786/

[Window Bar]

I believe it is It! The Terror from Beyond Space. Not a bad movie as I remember it. A precursor to Alien.

And of course Alien defines the genre.