For the film 'Mother and Child,' Samuel L. Jackson and costar Naomi Watts had to get (nearly) naked on day one of filming to shoot a sex scene.
Jackson and Watts barely knew each other. "You always ask the actress, 'Where can I touch you, where can I not touch you?'" he explained.
"Then you apologize for, you know, 'I'm sorry if I get excited, and I'm sorry if I don't.'" Source
Samuel L. Jackson & Naomi Watts in 'Mother and Child'