George Clooney teams up with Disney for the expected summer box office hit "Tomorrowland", a futuristic adventure which the Hollywood actor says he was drawn to because of its hopeful message.

Clooney, known for his roles in "Ocean's Eleven" and "Syriana", plays the jaded former boy-genius Frank, who joins teenage science-fan Casey (Britt Robertson) on a mission to unearth the secrets of a place somewhere in time and space called "Tomorrowland".