Among the commercial and critical hit films Paramount produced and/or distributed during Grey's tenure were the Transformers, Paranormal Activity, and Iron Man franchises, Star Trek, How to Train Your Dragon, Shrek the Third, Mission: Impossible III, Mission: Impossible – Ghost Protocol, An Inconvenient Truth, There Will Be Blood, No Country for Old Men, The Curious Case of Benjamin Button, Babel, Shutter Island, Up in the Air, The Fighter, True Grit, The Adventures of Tintin: The Secret of the Unicorn, and Hugo.