The World's Fastest Indian. It is based on the true story of Burt Monro-a 67 year old New Zealander that raced in the Bonneville Salt Flats race and in 1967 broke the landspeed record on a highly modified (i.e. half the parts home made) Indian Scout 1000cc motorcycle. He was clocked at going over 180 miles per hour. His record for that sized engine and bike still stand nearly 40 years later. the movie showed that his mods were very basic and a bit 'out there', like using a cork for a gas tank stopper, a door hinge as a cover for the top of the tank, using regular tires that he himself shaved the tread off of to make faster (as opposed to expensive treadless racing tires) and so forth.
I also watched BeerFest and Ice Age:The Meltdown but that former one took the cake for me. Plus Sir Anthony Hopkins played Burt so it was good acting to boot.