Actor-filmmaker Ben Affleck could be a stand-up comedian, says "Gone Girl" co-star Rosamund Pike.

"When we first were doing make-up tests, I thought, 'This guy could be a stand-up comedian'. He has characters and impersonations ... accents. He quickly crystallises you," Pike was quoted by people.com as saying.

The two star together as husband and wife in the film directed by David Fincher.

"He's so good in the film. You watch this guy get tossed and turned," said Pike.

Affleck is married to actress Jennifer Garner, and has three children - Violet, 8, Seraphina, 4, and Samuel, 2.

"He's very fun. He's obviously got a son now, but you can feel he is surrounded by girls in his house," said his co-star.

"We would be in the make-up trailer and we very quickly got to talking about very gossipy female things, and he just gets right stuck in it," she added.