The full theatrical trailer for Cowboys & Aliens has been released, just don’t expect to see any aliens in it. They want to keep the aliens a surprise until you see the movie, which is really something rare theses days. In fact, only Spielberg usually has the balls to hold things back, as he famously did with the dinos in Jurassic Park. While most of the trailer repeats the original teaser, there are some new cool bits. We do get to see an alien hand, and looks at some of the ships in daylight. Indiana Jones and James Bond fight aliens in the Old West. What else do you need to know?