Entertainment Weekly have just posted their annual picture preview for Comic-Con and contained within are a few brand new images from a good number of films that can expect to see get some kind of push at the Con.
Below you will find images from Alfonso Cuarón's Gravity;Doug Liman's All You Need is Kill, which is apparently now going to be called Edge of Tomorrow; Enders Game; and The Hunger Games: Catching Fire.
I think there's actually a spoiler in that last one so if you're good at putting two and two together and want to remain unspoiled then I'd advise you stop scrolling when you see Ender.
The top two images were posted at The Lebanese Cinema Movie Guide without the Entertainment Weekly watermark. Presumably they have their own sources for these.