Daniel Craig. Harrison Ford. Sam Rockwell. Olivia Wilde. Jon Favreau. Steven Spielberg. Ron Howard. If you attach all of these names to one movie, does it legitimize the movie? Many Harry Potter fans had to ask themselves this question over the weekend when they were treated to the trailer you’ll find in the video above. The project is called Cowboys & Aliens, and this is not a joke.

Craig plays protagonist Jake Lonergan, who wakes alone in the desert with no memory of who he is. He knows only that he is alone, and has a mysterious metal shackle around his wrist. Things go from bad to worse when he learns that he is a criminal, wanted by the chief lawman in the nearest town (Harrison Ford).

But that’s not the real twist. The real twist comes in the form of spaceships winging in from the skies, shooting lasers and terrorizing the inhabitants of the sleepy western town (make no mistake, this is a period piece, people). Imagine the townsfolks’ surprise when Lonergan raises his shackled arm and begins shooting the predators right out of the sky.

And that’s just the trailer. It's totally real. Directed by Favreau, produced by Spielberg, Howard and Brian Gazer, Cowboys & Aliens will be flying and shooting its way into theaters in July 2011.