The First teaser poster for Tony Gilroy's The Bourne Legacy has emerged online. The movie, the fourth chapter in the popular Bourne franchise stars Jeremy Renner & Edward Norton. We got the first official image of Renner as Aaron Cross earlier this week, now we have the poster which bears the tagline "Prepare For The Unexpected". Rachel Weisz, Oscar Isaac, Scott Glenn & Albert Finney also star. The Bourne Legacy hits theaters this August 3rd. The poster comes via Cine1. Update: This is actually not an official release.