The Big Kahuna (1999) on Netflix

Three sales representatives attend a trade show in the American Midwest to sell industrial lubricants. Larry Mann and Phil Cooper are two longtime friends, while young Bob Walker is a newcomer, lent by the company's R&D team to help in the booth. The three hope to meet a business executive Larry refers to as 'the Big Kahuna, el Kahuna grande' in the hopes of landing an account. As their hotel stay proceeds, the gap in life experience between young Bob and his two colleagues grows ever more apparent. That gap threatens to become a chasm when the executive invites Bob, and only Bob, to meet with him.