Kelly Brook and Billy Zane�s new movie has been called the �possibly the worst movie ever� following its Cannes Film Festival Premiere.

The couple turned up to promote Fishtales at the glitzy film festival, but critics did not share their enthusiasm for the picture � with half of them leaving before the end.

One tells The Sun, �It was the worst thing I�ve seen this year, possibly ever. I stayed as long as I could before crying with boredom.

�We followed the crowds and snuck out of the door. But I felt guilty when I saw Amber Savva - the girl who plays Billy�s daughter - waiting in the wings.

�At least she�s got time to learn. The others should have known better.�

Couples working together on movies rarely works � just ask Madonna and Guy Ritchie.