George Clooney wants to become more involved in other aspects of filmmaking as he gets older and may appear on screen less and less.

The 52-year-old actor, who plays Lieutenant Frank Stokes in the World War Two action drama The Monuments Men, says that he enjoyed writing, producing and directing the movie and that appearing on screen is not necessarily his future.

Speaking to film magazine Empire, Clooney said: ''The two things I have found later in life, much of it is out of necessity, as you get older as an actor you don't want to rely on being on screen for the rest of your career, so you want other things. I really enjoy writing and directing.''

Clooney said that he was thrilled that Matt Damon, Bill Murray, John Goodman and Cate Blanchett all agreed to star in the film which is released on February 14.

''I flew to Australia for one day to give Cate the script. Bill Murray was at my house, he's a friend. We wrote the parts for almost every one of the actors in it, so we got our first choices. It's unusual but it's also really fun. Having John Goodman again was . . . a good friend . . . it was good fun.''