Sarah Jessica Parker has revealed that she experienced the worst day of her acting career while filming Failure To Launch.

Recent reports have claimed that the actress clashed with co-star Matthew McConaughey while making the romantic comedy, however she has now claimed that she found paintballing far more traumatic.

"I never need to do it again, let's put it that way," she is quoted by the Daily Record as saying. "I was running around in one hundred degrees, with a gun. It might have looked like I was having fun, but that's only because I'm an actor."