Rain Man
I might have cried a little
People have said it before, but I find Cruise's performance here just as impressive as Hoffman's. Hoffmans is the one you notice and appreciate immediately, you could watch any scene with him and recognise that its a great one, but to appreciate Tom Cruise, you really do need to watch the whole thing. He doesnt have any "big" moments, but to me the way he manages to slowly take his character from being a completely despicable asshole to someone you genuinely care about at the end is as impressive as any big acting moment of his career