Keaton's energy sells that movie as easily as Ray Kroc took their idea and ran off with it. The way they showed how the brothers simplified the process by using an ergonomic design from 'kitchen to counter' was really revolutionary at the time, but traces of it can be seen in the way Ford developed the manufacturing process for automobiles in the 20s.. I think the Russians still have their Mcdonald's outlets in Moscow, only they've changed the name to Vkusno i tochka - tasty and that's it. Catchy.