Probably my favorite Indy film.

Rating: Null/10 (16 November 2003)

I think the only flaw that this film has is that is does rehash the general plot of Raiders of the Lost Ark. But that doesn't stop it from being so darn enjoyable.
Indiana Jones is such an easy character to love, professor by day, and daring archaeologist by night. I think the best thing about Indy is that he is somewhat grumpy at times and even a screw up. There are a few times when luck is the only think that saves him in the end, which is a good thing. He's more relatable being imperfect.
Add another great character, his Dad, played by the acting god that is Sean Connery, and you have a great duo. Both actors play off each other with hilarious outcomes, definitely making this the funniest Indy movie.
Then you add some big, elaborate, over-the-top and creative action sequences, which even to this day stand up against those in present action films (the tank sequence is still awesome), spills, chills, and a very hot lead lady, and you have yourself one great film!
So if it's a fantastic action flick you're looking for then take The Last Crusade.