Steve Carell regards 'Foxcatcher' as the ''darkest'' movie he's been involved with.

The 52-year-old actor - who is best known for his appearances in comedy films like 'Anchorman' and 'The 40 Year-Old Virgin' - plays philanthropist and wrestling enthusiast John du Pont in the biographical drama film and Carell admits he was ''intrigued'' by the role.

He explained: ''I tend not to choose things based on how I think people will respond to them because that's short-sighted and counter-intuitive and your mind isn't focused on just doing good work; there's an ulterior motive.

''The Foxcatcher role wasn't strategic and I don't really have a career strategy because I think that works against just doing what's interesting. For the last couple of years I've sort of dabbled in things that aren't necessarily funny or light, and this is by far the darkest of all. But it was intriguing to me.''

Carell also said he's not motivated exclusively by money and appreciates all of the success he's enjoyed though his career.

He told the Daily Telegraph newspaper: ''Money is great and money can be very helpful. I would rather have money than not have money but I don't think it defines me.

''It's a cliché but I don't think I'm necessarily happier having money than not having money. Some of my happiest times were when I was unemployed or working as a waiter and just getting by. But I don't think I'm a greedy person and I like to help other people. I've been very fortunate and I don't take it for granted.''