Paul Rudd makes so many Judd Apatow movies because he feels comfortable with the filmmaker and also often doesn't get the other parts he wants.
The 42-year-old actor - who has worked with the producer and director on a number of movies including 'Knocked Up', 'The 40 Year Old Virgin' and 'This Is 40' - feels comfortable with the filmmaker though he admits that isn't the only reason why they collaborate so frequently.
He said: ''It's about half-half deliberate. It isn't just that I want to work with friends. I'd like to work with people I've never worked with before and work in different genres. But one, sometimes I don't get those parts; and two, someone like Judd will say 'Oh we're going to do this one next'.''
He told Glamour magazine: ''The great side is movies take months to shoot, so to be surrounded by friends makes for a much more enjoyable experience. They have a kind of life's Too Short mentalist -there's no diva energy or jerks.
''It's a fun job, it should be fun. I do believe that.''