I first heard Marlon Brando deliver those lines in a 1961 film, One-Eyed Jacks and have found occasion to quote them repeatedly to and about people who talk a good game, but fail to deliver.

Brando not only starred in this film, but stepped in to direct it when Stanley Kubrick backed out. It is considered Brando's masterpiece. An incredibly gripping western. Stands alone among the great westerns in its intensity and superb acting. Not received well in 1961 as it was too far ahead of its time. Dark and brilliant. It has been hailed by Martin Scorsese and Quentin Tarantino, it is the only film directed by one of the most famous actors in film history and it signaled the rise of a more violent and cynical cinema, but for some reason Marlon Brando's One Eyed Jacks has never really gotten its due. If you read a review of it, you will learn how it utilizes the symbolism of the playing card/one-eyed jack, that is people who present different sides of their "face" (self) to different audiences.