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It's no secret that Hollywood loves a beautiful face. Upon closer inspection, however, it seems that Hollywood's definition of beautiful is fairly... narrow. In fact, some actors and actresses are practically interchangeable! (According to Jake Gyllenhaal, every cab driver in New York thinks he played Spider-Man.) Then there's Nick Nolte and Gary Busey... Renee Zellweger and Joey Lauren Adams... And the list goes on. Click through to see ten actors and their doppelgangers side by side and see if you can tell who's who.

Amy Adams: Photo by Michael Germana. Isla Fisher: Photo by Gregorio Binuya. Courtesy Everett Collection.