T.S. Eliot began his famous poem "The Waste Land" by saying "April is the cruelest month." Larry Wilde, Director of the Carmel Institute of Humor, agrees that Americans need a little extra humor in their lives in April to boost their sprits and relieve some of the stress of dealing with taxes. In 1976 Wilde declared that April would forevermore be known as National Humor Month. Beginning with April Fool's Day, this formerly cruel month is now one of the funniest. To celebrate National Humor Month and get you in a gut-busting mood, let's take a look back at the five funniest movies of the last twenty years.