Raiders of the Lost Ark: The Adaptation is a fan made film by three 12-year olds from Mississippi, who worked on the movie for seven years (1982-1989). They filmed the whole movie, except one scene- where Indy is fighting the Nazi on the airplane. As the years went by the movie was rediscovered and people loved it. They filmmakers eventually met Steven Spielberg and in 2014 they held a Kickstarter campaign to finally film that one missing scene. The movie is really fun. The continuity is a bit off, as you can see the kids age and actors change, but its a great job by three young filmmakers. In 2014 I backed the Kickstarter and I am “thanked” in the credits (you can also see a list of supports on their website http://www.raidersguys.com/#!thankkyou/cuot).
Checkout the film here: http://www.raidersguys.com/ and http://raidersguys.wix.com/raidersguys