Rockwell will play a meek, small-town pharmacist stuck in a loveless marriage who rediscovers himself by starting an affair with a trophy wife, to be played by Garner. After she introduces him to the pleasures of prescription drugs, things spin out of control when they begin plotting to kill her husband.
Michelle Monaghan is set to co-star as Rockwell's wife, while Judi Dench will serve as the film's narrator.
Occupant's Joe Neurauter and Felipe Marino are producing "Chemistry," which ICM is handling North American rights for.
Rockwell recently starred in "Conviction" and "Iron Man 2." He'll soon be seen in Jon Favreau's "Cowboys & Aliens" and David Gordon Green's Jonah Hill comedy "The Sitter," which 20th Century Fox releases Dec. 9.
Rockwell is repped by Gersh.
-Joey's Two Cents: One good actor replacing another...thoughts?