I noticed this visual cue that unites Jude Law and Rooney Mara's characters in Soderbergh's Side Effects. Both characters are seemingly going though an emotional crises at two separate times of the film. I find that his decision to use this light behind a character's head an interesting one because of it's place in art history. Religious paintings use a light behind a character's head to show that character has been touched by divinity.
But neither of Soderbergh's characters are saints, that's for sure.