Susan Sarandon loves depressing roles

American actress Susan Sarandon has revealed that she relishes roles in depressing movies-as she loves cheering up her co-stars onset.

The Thelma & Louise actress has done a string of dark, gritty parts including a prison-visiting nun in Dead Man Walking and the mother of a seriously-ill child in Lorenzo's Oil.

"The more depressing it is the more fun I am to work with, because I can't bear the idea of not having a good time, so Lorenzo's Oil was a laugh riot," the Daily Express quoted her as telling Stella magazine.

"I think you need to have a respite and anything that is really extreme becomes funny," she added.