OK, I saw this movie in the late 70’s when I was in elementary school, and this is all I can remember:
The movie was in black and white. It looked like it might have been made during the 50’s or 60’s, but I remember it being a bit bloody and disturbing rather than campy. It wasn’t very fun, and I was a little freaked out (In my defense, I was about eight at the time.)
OK, the crew members had those futuristic outfits on, and I remember one of them was killed somehow. He was lying on a bed in the hospital room in the spaceship, and he was covered in blood. There was a male astronaut and a female astronaut standing over him. A couple of scenes pass. The female astronaut is alone, and she goes into the room and notices that the table is empty. She opens up a closet, and the dead astronaut is standing there with his eyes wide open like a zombie, and she screams.
The only other scene I remember is on the planet the spaceship has travelled to/crash-landed on. It’s a rocky wasteland. Out of the ground comes this big old godzilla-like monster roaring away, and he starts to move. He’s about the same size as Godzilla, but I don’t think this was Godzilla, because I had seen Godzilla by this time, and the monster didn’t look anything like that. Plus, as I’ve said, the movie had the wrong feel. It was too disturbing.
I’m amazed at Dopers’ ability to ID movies, but if you can ID this one based on just these clues, I might start to be a bit worried.