Whats the name of this movie?

Starts off with a young guy trying to get hired as a stock broker at a firm, but the firm only hires him as a janitor, he befriends an older janitor whose worked there for years. Meanwhile theirs this broken shredder that spits out the documents its supposed to shred, so the older janitor starts taking the documents with inside information from the shredder, and subtly asks the young guy how to buy and sell stock. He sets up "the 3 wish" fund. But the shredder eventually gets fixed, so they decide to short the firms stock so they can buy it, by having the old janitor pretend the firm lost him all his money and now hes about to jump off the building.