Happy Hour

Happy Hour (also known as Sour Grapes) is a 1987 comedy film directed by John De Bello, who also directed the 1978 comedy Attack of the Killer Tomatoes. A chemist for the fictional Coors-like Marshall Brewery, experimenting with different formulas, stumbles upon an ingredient that, when added to beer, makes it absolutely irresistible with the whole country buying Marshall's beer almost exclusively. Before he realizes it, an international spy is after him to try to get the formula for himself. The movie is set in Denver, Colorado, and San Diego, California.