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is on the cusp of stardom, and with that, he faces those inevitable dating rumors.
But one of those rumors he can put to rest – he is definitely not dating his costar in The Giver
, Taylor Swift
"It's just crazy how the tiniest piece of information can get spread all across the world when the right name's involved," he tells PEOPLE. "It was such a lesson."
Thwaites, who also played Prince Philip in Disney's Maleficent
, now plays Jonas in the movie adaptation of Lois Lowry's Young Adult novel.
"They took a risk on me," he says. "It was a dream come true."
The movie (which opened this week) has been Jeff Bridges's passion project for nearly two decades. The actor, who plays the titular "Giver," acquired the rights to the book in the '90s and tried to get it made for years before The Weinstein Co. finally agreed to finance the movie.
For Thwaites, 25, working with Bridges, 64, was the best part of filming The Giver
"I love Jeff," he says. "The way he works on set is so cool and chill. He keeps it very creative and very open."
"The best thing for a young actor is to watch an older actor work," he adds. "That was the best gift. It was such an honor."
So is Thwaites prepared for the superstardom that comes with appearing in a movie adaptation of a popular YA novel?
"It's already bringing me newfound fame," he says. "I don't know what to do. It's been really crazy. It's really exciting, but at the same time, it's quite daunting."