George Clooney found making 'The Monuments Men' ''easy'' because the set was so fun.

The actor-and-director stars alongside friends and previous co-stars Matt Damon, Cate Blanchett and John Goodman in the wartime drama and says everyone had such a good time making the movie, they even came in on their days off to ''hang out''.

He said: ''John Goodman and Bill Murray would come to the set even when they weren't working and hang out. It was a really great place to be so it made it easy to shoot.''

The 52-year-old actor is delighted to see 'Blue Jasmine' actress Cate and his 'Gravity' and 'August: Osage County' co-stars Sandra Bullock, Meryl Streep and Julia Roberts doing so well during awards season, even though he hasn't received the same recognition.

He told 'Entertainment Tonight Canada': ''I've been friends with Julia for a long long time, I've gotten to know Meryl over the years and I love her. And I'm happy for Sandy Bullock and for Cate, who is in this movie.

''So it's a lot of wonderful, really talented women doing really well.''