24 star Kiefer Sutherland is hopeful the hit TV series will become a movie franchise.

Studio bosses are currently working on plans to turn the thriller show, in which Sutherland stars as anti-terrorism agent Jack Bauer, into a feature film but the actor has loftier ideals.

He tells US magazine Entertainment Weekly, ''It can be an amazing series of movies.

''One of the things I've experienced making this show is that an audience can handle a lot more than we thought when we started - the tension, the anxiety...

"If we could (compress) all the energy we spread over 24 hours of programming and put that into two, I think we'd knock your socks off.''