Liam Neeson refuses his own stunts.

The 'Unknown' actor - who has previously been an amateur boxer - doesn't like to stress himself out by doing dangerous routines for movies but does make sure to do his own fighting.

He said: "I don't do my own stunts. I do my own fighting, which I don't regard as a stunt, but as my dear friend and stunt double Mark Vanselow does all my heavy duty stuff. He has been doing so for about 12 years now."

The Northern Irish actor had to do an underwater scene in thriller 'Unknown', and he confesses he relied on Mark to do this harder work on the shots.

He said: "It was very, very scary for me and I worked with Mark in a tank-in fact, a swimming pool-to get used to it. I'm not a very strong swimmer. I came to water late. In fact, I learned to swim at the age of 20.

"I felt confident enough-Mark was literally there with the mask, as I knew he would be-and I banged the window, I'm unconscious, and I was just feeling the water coming up, knowing everybody's there, but once it got to there I just panicked.

"So, we got out, which was easy enough, [but it was] because I wasn't in control; that's what it was about. So, anyway, Mark talked me through it. I basically took deep breaths and lowered myself in the seat, which was much, much easier to do."