Brad Pitt occupies a space in Hollywood that is mostly untouched. He’s the definition of a transitory movie star, one of the last in this generation where they’re becoming harder to find. Apart from the likes of Leonardo DiCaprio and George Clooney, Brad Pitt is one of the last stars still working at the top level. In recent years, his career has taken him to the front lines of World War 2 more than once and made him the last line of defense against Charles Manson’s murderous cult. However, it’s the movie that sent him up into space that gave him perhaps his hardest acting challenge not being Brad Pitt.