Screen siren Scarlett Johansson relishes working with big name co-stars because they push her acclaimed acting abilities to even greater heights.

The sexy 20-year-old has starred alongside a galaxy of stars including Bill Murray and EWAN McGREGOR - but she credits Hollywood legend John Travolta for challenging her talent the most.

She says, "It helps me step up my game. When you're working with someone you admire and who is iconic, like John, it makes you want to be a better actor."

26/07/2005 05:11