In the new film Big Miracle (in theaters Feb. 3), Drew Barrymore plays a Greenpeace volunteer who fights to save a family of whales trapped by rapidly forming ice in the Arctic Circle. And the actress, 36, admits the inspirational true story affected her on personal level.
"I need these kind of stories to actually believe that you can do something extraordinary," Barrymore -- who's newly engaged to art consultant Will Kopelman, tells iVillage exclusively.
And though Barrymore, who's joined on the big screen by The Office star John Krasinski, says the film is close to her heart, there was one aspect of filming in Alaska that presented a challenge.
"It was very cold!" she says. "It was like being inside a snow globe. But it was very beautiful."
Watch our exclusive video interview to find out why Krasinski says being passionate can be "fantastic" and why they can both relate to finding surprising allies.