Michael Fassbender admits he felt the "pressure" when working with Ridley Scott.

The actor teamed up with the Alien director in new sci-fi movie Prometheus and he says he had a "healthy amount of fear" before starting work because he has so much respect for Scott: "You're very much aware of that and that it is Ridley and that it is this world and there is that pressure, but that's good. That gives you a healthy amount of fear and then like I said I try to get all of the preparation squared away and then on set really try to have fun."

However, Fassbender says the most important thing about the movie - which also stars Charlize Theron and Guy Pearce - was enjoying playing the character and having fun.

"I knew that I wanted to have fun with this character. I really wanted to enjoy it and Ridley and I seemed to click immediately in terms of what was going on with the character and the freedom to try things out with him and to find the humor in there. I said to him, 'This guy is funny, right?' He was like 'Yes. Great. Let's go for it.' So yeah, that was the main thing, to really enjoy him."