It can seem like Hollywood is all glitz and glamour, but while the idea of being famous is appealing to many of us, a lot of real, hard work goes into movies behind the scenes. That work can test a person's limits not just as an actor but as a human being. <br /> <br />Including: <br />Michelle Rodriguez in The Fast and the Furious | 0:17 <br />Lauren Cohan in The Walking Dead | 0:57 <br />Jim Carrey in The Grinch | 1:29 <br />Ian McKellen in The Hobbit | 2:08 <br />Jessica Alba in Fantastic Four | 2:47 <br />Brad Pitt in Interview with the Vampire | 3:27 <br />Russell Crowe in Robin Hood | 3:57 <br />Emma Watson in Harry Potter | 4:32 <br />Al Pacino in The Godfather | 5:07
