Question: what is the movie pirates of the caribbean based on?
Answer: Pirates of the Caribbean (2003) Did you know that Johnny Depp's swashbucklin' saga was inspired by a ride at Disneyworld? 10 points if you already did. The ride itself was actually based on the 1950 movie Treasure Island, which in turn was based on the book by Robert Louis Stevenson wrote way back in 1883.