Movies like The Big Kahuna

On the last evening of a convention two seen-it-all industrial lubricant salesmen and a youngster from the research department gather in the hotel's hospitality suite to host a delegates party. The main aim is to get the business of one particular big fish. When it becomes apparent that it is the lad who has developed a direct line to the guy, his strong religious beliefs bring him into sharp conflict with his older and more cynical colleagues.