Liv Tyler has laughed off rumours she is dating her Incredible Hulk co-star Edward Norton, insisting their relationship is "strictly platonic".

The newly-single actress prompted speculation when she raved about Norton's buff physique while promoting the new movie. She claims she found love scenes intimidating: "because his body looks so much more beautiful than mine!'"

America's Star magazine goes a step further, with sources alleging they are already an item.

But Tyler's representative insists their friendship "is and has always been platonic".

Tyler split from her rocker husband Royston Langdon after five years of marriage last month. The couple has a son, four-year-old Milo, together.