The film, directed by John Swanbeck, is based on the play "Hospitality Suite" by Roger Rueff. The three salesmen are Larry Mann (Kevin Spacey), Phil Cooper (Danny DeVito), and Bob Walker (Peter Facinelli). They are all from different branches of the company and have different styles of selling.
As they wait for Dick Fuller, they engage in conversations about their personal lives and philosophies about sales. Larry is the veteran salesman who believes in the power of persuasion and personal relationships. Phil is the cynical, jaded one who believes in cold calls and relentless pursuit. Bob is the young, idealistic newbie who believes in honesty and integrity.
When Dick Fuller finally arrives, things do not go as planned. He is a religious man who doesn't drink or socialize much, which complicates the sales pitch. Furthermore, he is not interested in buying the company's lubricants, but rather in discussing spirituality and the meaning of life.
The film explores themes of faith, ethics, and the human condition. It showcases the complex dynamics of the business world and the personal struggles of the salesmen. The performances by Spacey, DeVito, and Facinelli are praised for their depth and authenticity. The Big Kahuna is a thought-provoking drama that challenges the audience to question their own values and beliefs.