Cowboys and Aliens poster

Does Jon Favreau have another comic-based blockbuster on his hands with Cowboys & Aliens?

We'll have to wait until July 29, 2011, to see. For now, though, you can make your best guess with the action-packed trailer for the Iron Man director's newest project.

Harrison Ford, Daniel Craig appearance at Comic-Con creates nerdvana

Based on a graphic novel, Cowboys & Aliens stars Daniel Craig as Jake Lonergan, an amnesiac stranger who winds up in a town called Absolution with a high-tech shackle on his wrist. When Absolution — run by Harrison Ford's Col. Woodrow Dolarhyde — comes under attack by aliens, Jake realizes he may hold the key to fending them off and tries to unite the town.

Olivia Wilde, Sam Rockwell, Keith Carradine and Justified's Walton Goggins also star.

Check out the trailer below: