Well, technically it started in a pizza parlor – but they did bond over the galactic world.
“She likes Star Wars like me. So that’s why we re best friends,” Tremblay, 9, told PEOPLE at the Los Angeles premiere of Room. “We talk about it all the time.”
Larson, 26, explains that the first time she met Tremblay for dinner he brought Star Wars Legos with him, and being a fan herself she thought it was the perfect way to bond with him.
“I asked him something about it and that was the first time where he was like, ‘Wait a second,’ and thought perhaps maybe I was cool,” she told PEOPLE. “And that was the beginning of our friendship.”
It was a smart move on Larson’s part because it turns out Tremblay isn’t just a Star Wars fan, he’s a full-blown fanatic!
The young star admitted that after he watched one movie in the series, he was sold.
“I was like, ‘Whoa man! I want to watch all of them,’ ” he said.
And like any loyal fan does, he then binge-watched the entire series in one weekend.
Bonding over the hit franchise has seemingly paid off. The two are already receiving early awards season buzz for their heart-wrenching performance as mother and son in Room, and the film has already brought home the 2015 Toronto International Film Festival’s coveted People’s Choice Award.
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The film tells the story of a mother and her 5-year-old son who are held captive for years in a small structure they refer to simply as “room.”
Room hits theaters Oct. 16.