Liam Neeson 'panicked' during filming

Liam Neeson feared he would drown shooting his new movie.

The 58-year-old actor couldn't use a body double for a scene in 'Unknown', in which he had to be unconscious and pulled from a sinking car and "panicked" when he felt the water levels rising.

He admitted: "I came to swimming late. I learned to swim at the age of 20.

"I've put my head six inches under the heated water and I'm sitting in the back unconscious. I'm feeling the water coming up and once it got there, I just panicked. I wasn't in control."

The 'Taken' star also revealed he has used the same stunt double for 12 years, though he doesn't rely on having someone else fill in if he has to shoot fighting scenes.

He added in an interview with the Boston Herald newspaper: "I don't do my own stunts. I do my own fighting, which I don't regard as a stunt. My dear friend and stunt double has been doing the heavy stuff for about 12 years now."

'Unknown' is due for release in cinemas next month.