The first TV spot for director Jon Favreau's Cowboys and Aliens was revealed during the Super Bowl XLV telecast last night. Jon Favreau recently spoke out about what we saw and didn't see in the spot.

Here's what he had to say about not revealing the aliens in his sci-fi Western during last night's commercial.

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"We haven't shown any of the aliens. We want to hold that back. And all the images we're showing are from the beginning, up to the first half of the film. We're not showing a lot of where it goes. The first teaser was showing the opening of the film and a little of the setup. This one is showing more of the sense of adventure as things unfold. We're just trying to get people's feet wet."

The director also talked about the assumptions people might have about Cowboys and Aliens being a comedy, and about sticking to the roots of the Western genre.

"Yeah. I think people's first response on hearing the title, which is a play on words, is that it's going to be a comedy. They've been disappointed in the past when people have played with the Western genre, and not stuck to what's bad-ass about it. When they throw that out the window, and play a pastiche of it, they don't feel like they're getting what they want. What you want is the grizzled warrior on the parched plains, and you want to see this iconic figure, who almost magical emerges from mirage of the horizon. There's a level of fun, but that doesn't mean we have to wink. The characters aren't having fun, but the audience is. We wanted to maintain the integrity of both genres, and focus on a specific aspect of the alien genre which mostly revolves around the films of the '80s that I grew up with, and I'm lucky enough to be working with Spielberg (Cowboys and Aliens executive producer), who was the author of many of the films we're using as inspiration. And sometimes it's fun to play things as thriller, sometimes verging on horror, like Alien or Aliens. We wanted to maintain that gravity."

Jon Favreau also discusses the theory that Olivia Wilde's character is in fact an alien, since she appears naked by a fire in the TV spot.

"Okay, that's an interesting theory. You're the first person who's asked me that. If it's making you speculate then it's doing a good job. But I cannot confirm or deny anything. That's a moment in the film that may seem out of context, but actually makes a lot of sense in the course of the movie."

CLICK HERE to read the full interview.