How Do You Know Cast and Crew

Main Cast: Reese Witherspoon

Main Cast: Paul Rudd

Main Cast: Owen Wilson

Main Cast: Jack Nicholson

Supporting Cast: Kathryn Hahn

Supporting Cast: Mark Linn-Baker

Supporting Cast: Lenny Venito

Director: James L. Brooks

Writer: James L. Brooks

Film Producer: Julie Ansell

Film Producer: James L. Brooks

Film Producer: Paula Weinstein

Music Director: Hans Zimmer