A new trailer for "Indiana Jones and the Kingdom of the Crystal Skull" was placed in front of "Iron Man" this past weekend and it's now online at IndianaJones.com. The trailer gives us our first hints as to what the Crystal Skull is all about and why Indy and our friends will be looking for it. The fourth Indiana Jones movie opens in theaters May 22nd.

Click on the link below to check out the trailer in Quicktime and Quicktime HD.