Summer Movies Breakdown: Big Action & Sci-Fi Fun

All this week ET is breaking down the key ingredients for Hollywood's hottest summer movies, including action, sci-fi and horror movies, comedies, animated tales, and dramas based on a true story. Watch the video!

Pics: Hollywood's Hottest Movie Posters

From action hero Brad Pitt in World War Z to Mark Wahlberg and Denzel Washington in 2 Guns and Henry Cavill as Superman in Man of Steel, go behind the scenes of the big action, sci-fi and horror thrillers that will get your adrenaline pumping!

Related: 'Fast & Furious' Smokes 'Hangover' at Box Office

For complete movie coverage, head over to ETonline's Summer Movie Guide for exclusive content, behind-the-scenes looks, fun-filled Speed Rounds, extensive photo galleries, trivia quizzes and much more.