Yahoo! Movies! has released the first trailer and a new batch of photos for the upcoming comic book adaptation Cowboys and Aliens, which will be released in theaters nationwide on July 29, 2011. Click on the video below to watch the first footage from this new sci-fi Western starring Harrison Ford and Daniel Craig, which was directed by Jon Favreau. You can click on any of these new images below to access our gallery as well:

Cowboys and Aliens Photo #1

Cowboys and Aliens Photo #2

Cowboys and Aliens Photo #3

Cowboys and Aliens Photo #4

Cowboys and Aliens Photo #5

Cowboys and Aliens Photo #6

Cowboys and Aliens Photo #7

1873. Arizona Territory. A stranger (Daniel Craig) with no memory of his past stumbles into the hard desert town of Absolution. The only hint to his history is a mysterious shackle that encircles one wrist. What he discovers is that the people of Absolution don't welcome strangers, and nobody makes a move on its streets unless ordered to do so by the iron-fisted Colonel Dolarhyde (Harrison Ford). It's a town that lives in fear.

But Absolution is about to experience fear it can scarcely comprehend as the desolate city is attacked by marauders from the sky. Screaming down with breathtaking velocity and blinding lights to abduct the helpless one by one, these monsters challenge everything the residents have ever known.

Now, the stranger they rejected is their only hope for salvation. As this gunslinger slowly starts to remember who he is and where he's been, he realizes he holds a secret that could give the town a fighting chance against the alien force. With the help of the elusive traveler Ella (Olivia Wilde), he pulls together a posse comprised of former opponents-townsfolk, Dolarhyde and his boys, outlaws and Apache warriors-all in danger of annihilation. United against a common enemy, they will prepare for an epic showdown for survival.