Claim: The Hangover Part III includes Bradley Cooper, Ed Helms, Zach Galifianakis, Justin Bartha, and Ken Jeong, Jeffrey Tambor, Heather Graham, Mike Epps, Melissa McCarthy and John Goodman.
Evidence: The film stars Bradley Cooper , Ed Helms , Zach Galifianakis , Justin Bartha , and Ken Jeong.
The supporting cast includes Jeffrey Tambor , Heather Graham , Mike Epps , Melissa McCarthy and John Goodman with Todd Phillips directing a screenplay written by himself and Craig Mazin.