Transformers Fans of the 1980s cartoon/toy franchise flocked to catch a glimpse of their favorite Autobots and Decepticons battling it out, and this trailer delivered the action in a big way. Watch Trailer

Spider-Man 3 Spidey's third big-screen adventure saw Peter Parker tempted by the dark side, trying to balance his love life and an increasing array of threats: Sandman, New Goblin, Venom... and himself. Watch Trailer

Pirates of the Caribbean:
At World's End Johnny Depp returned as the wily Jack Sparrow, along with Keira Knightley, Orlando Bloom, Geoffrey Rush and Chow Yun Fat--proving that you could never have too many pirates in one trailer. Watch Trailer

Harry Potter and the
Order of the Phoenix Being a teenager is hard, but being Harry Potter is downright dangerous. The trailer for Harry's fifth year at Hogwarts promised dark villains, a student rebellion... and Harry's first kiss. Watch Trailer

300 Prepare for glory! Few trailers have evoked the kind of macho chest-beating generated by this graphic novel-inspired tale of 300 Spartan warriors who withstood the attack of a massive Persian army. Watch Trailer

The Simpsons Movie After 18 years on television, Homer, Marge, Bart, Lisa, Maggie and the rest of Springfield's zany regulars made the epic leap to the big screen, and this trailer guaranteed giant laughs. Watch Trailer

Resident Evil: Extinction Milla Jovovich's third turn as Alice, a genetically-altered warrior woman and mankind's last hope for survival after a deadly virus transforms the world's population into ravenous zombies. Watch Trailer

Fantastic Four: Rise of the Silver Surfer Of course Mr. Fantastic, Invisible Woman, The Human Torch and The Thing were all back, but even better, this trailer heralded the arrival of Marvel Comics' galactic rider, the Silver Surfer. Watch Trailer

Saw IV You thought it was over? You thought you were safe? You were wrong. For the fourth year running, this trailer announced Jigsaw's twisted, deadly game was back to terrorize horror fans. Watch Trailer