In Australia, where her action comedy "Killers" is set to premiere shortly in theatres, co-star Ashton Kutcher was speaking to the Daily Telegraph about working with Katherine, whom he describes as "hilarious".

"There are only a couple of leading ladies who can really do comedy, and she's one of them," he said. "Honestly, there are a ton of great actresses, but very few true comedic leading ladies of the Lucille Ball type who come and bring comedy. Katherine's got it. She gets it. She understands it. She can go toe to toe with anyone. Comedically, she could bury me," Kutcher added.

Katherine was not in Australia to promote the release of the film as she is currently shooting her new movie "One For The Money" in Pittsburgh.