CelebriGum Indistinct Celebrity Challenge!

Each of the following photos includes the gum, of course, plus a celebrity across the street, greeting fans and signing autographs.  Try to identify which picture has which of the following celebrities: Matt Damon, Sylvester Stallone, Hilary Swank, Harrison Ford, Robert Downey Jr.

Having trouble?  You're not alone.  According to a recent study, Chinese students were the best at identifying indistinct celebrities from 25 yards away, while American students ranked an unimpressive 34th out of 65 countries.  American teens scored even worse at identifying the brands of old pieces of gum.  Come on, U.S. educational system, let's get serious!

1 is Stallone, 2 is Damon, 3 is Downey, 4 is Ford, 5 is Swank.