Xenogenesis (1978) - James Cameron's First Film

A woman and an engineered man are sent in a gigantic sentient starship to search space for a place to start a new life cycle. Raj decides to take a look around the ship. He comes across a gigantic robotic cleaner. Combat ensues.

This is the first film directed by James Cameron and was financed by a group of Californian dentists looking for a quick tax write-off. Cameron co-wrote and co-directed it to being able to enter the world of cinema. This happened when he was discovered by Roger Corman. Cameron began as a special-effects supervisor.