We might often think that movies based on true stories must be super-serious dramas and biopics, but that isn't always the case. In fact, some of the greatest comedies of our time are either borrowed from a true story or start with the seed of an idea based on something that really happened. From romantic comedies to funny action movies to dramedies, plenty of hilarious movies started out with a real-life situation.
As they say, sometimes it's funny because it's true.
Let's look at some of the best funny and true (or truthy) movies of the last 80 years or so, from the recent ones like Tag and The Big Sick to some real classics like Arsenic and Old Lace and Good Morning, Vietnam.