julie boorstin takes a look at the names. >> reporter: marvel ironman 3 sets the movie season off to a great start. i want grossed $1.1 billion, more than two-thirds coming from overseas. "star trek into darkness" opened last weekend. this summer more than ever the global box office is a game changer. >> what you're seeing from ironman, the great gatsby and "star trek" is the international markets is what's driving the bigger successes. >> despite the fact the movie industry faces so much competition from everything from television to video games as these big budget speck at thatcles that can draw movie fans to come out every weekend. >> "star trek" obviously. >> lone ranger. >> we go every week. >> if they are good films i'll go see them. >> so many big budget films opening in a short period of time raises questions whether they ill cannibalize each other. a slew of summer sequels continues with the hangover part 3 and "fast and furious" 6. well-known brands should dominate throughout the summer. warner brothers superman reboot man of steel hits theaters in june and the lone ranger