To celebrate this Sunday's Academy Awards, we've collected 50 ads starring Oscar winners, ranging from the '60s (Dustin Hoffman for Volkswagen) to the present day (Timothy Hutton and Cuba Gooding Jr., both for Groupon). There are a handful of great spots, some amusing ones and more than a few duds. You'll notice a bunch from Europe and Japan, done by actors hoping to keep their reputations unsullied in America. And if you watch only one of the 50, make it the Russell Crowe video for Avondale College. Words cannot convey its awesomeness.