One of the best movie trilogies...well, ever really. Perfect entertainment, and all three films are great, though I'd put Raiders top probably. Got to love the banter as well between Indiana and his father in Last Crusade ("I'm as human as the next man!" "I was the next man!"). Also there's some fine support in the movies from the likes of John Rhys-Davies and Denholm Elliot.

The 4th one supposedly coming out in 2008 is kind of worrying though - isn't Harrison Ford getting somewhat old for this...