Liev Schreiber is Boxer Chuck Wepner in the Official Trailer for CHUCK

IFC Films has released an official trailer for Chuck, which stars Liev Schreiber as boxer Chuck Wepner. The New Jersey fighter once went 15 rounds with Muhammad Ali and was the inspiration for the iconic character Rocky Balboa. His story is one that can be told by sidestepping boxing movie cliches, and it looks like the film mixes convention with some lighthearted commentary.

Directed by Philippe Falardeau, Chuck also stars Naomi Watts, Ron Perlman, Elisabeth Moss, Jim Gaffigan, and Morgan Spector. It hits theaters on May 5th.

He was the pride of Bayonne, New Jersey, a man who went fifteen rounds in the ring with Muhammad Ali, and the real life inspiration for Rocky Balboa. But before all that, Chuck Wepner (Liev Schreiber) was a liquor salesman and father with a modest prizefighting career whose life changed overnight when, in 1975, he was chosen to take on The Greatest in a highly publicized title match. It’s the beginning of a wild ride through the exhilarating highs and humbling lows of sudden fame—but what happens when your fifteen minutes in the spotlight are up? Driven by a committed performance from Liev Schreiber, Chuck is a refreshingly human tale of resilience and redemption. Elisabeth Moss and Naomi Watts costar.