Following the first two previews for the new Guardians of the Galaxy trailer debuting on Monday, May 19, director James Gunn has released a third preview. Watch as this team of outlaws lead by Peter Quill a.k.a. Star-Lord (Chris Pratt) unite to bring justice to the galaxy in this Marvel Phase Two adventure, arriving in theaters August 1. Take a look at the latest footage, then come back on Monday to check out the full-length trailer.