This Week in Trailers: 'Transformers,' 'G.I. Joe,' 'Public Enemies,' and 'District 9'

The summer blockbusters are arriving every week for the next three months or so, and the trailers for them are arriving on almost a daily basis. We'll see iterations of trailers we've seen before plus some brand new ones guaranteed to figuratively knock your socks off. To that point, if you're going to watch any of these trailers listed below, watch the one for District 9. All of them have something to recommend, but chances are you don't know much about this one, and if you haven't seen the trailer you haven't seen anything associated with District 9 yet. So check it out and watch some of the others as well. Sci-Fi comes to South Africa in District 9 G.I. Joe sure looks...loud This trailer calls into question how Transformers can actually be more than meets the eye Meryl Streep and Amy Adams gettin' a stew on in Julie & Julia Steve Coogan and Hilary Duff? Yep. It's called What Goes Up Depp and Bale in the international Public Enemies trailer