Every now and then, a film trailer comes along that makes you tingle a tiny bit when you watch it, and this is one of those times. Avatar is predicted to be one of the biggest movies of this year and the next – and after watching this tralier we can totally see why. Directed by Titanic and Terminator king James Cameron and starring established talent such as Sigourney Weaver and Giovanni Ribisi, Avatar is basically a humans vs aliens tale, but with so much more depth. The special effects are awe-inspiring, and after just a three-minute trailer we're totally hooked. It's also no bad thing that the lead actor – Australian-born Sam Worthington – is very nice to look at. In his human form, anyway. Have a watch of the trailer and tell us what you think. After all, you can't just keep watching New Moon over and over again for the next few months, can you?