Acting funny opposite Bill Murray was tough: Naomi Watts

Los Angeles: Oscar-winning actress Naomi Watts says it was challenging to do funny scenes with Bill Murray and Melissa McCarthy in upcoming film 'St Vincent'.

Watts, 46, said comedy does not come naturally to her, so she thought to herself she would have to give her best for the comedy film, reported People magazine.

"I thought, 'I better have it together'. I'm not the go-to girl for comedy, she said. 'St Vincent' is written and directed by Theodore Melfi, making his feature film debut.