Bradley Cooper Reunites With Rachel McAdams for 'Aloha': 'I Knew We'd Have Great Chemistry'

Bradley Cooper and Rachel McAdams play each other's love interest in Aloha, and just like in the movie, the two have a history in real life.

Bradley Cooper and Rachel McAdams play love interests in Cameron Crowe's Aloha, and just like in the movie, the two have a history.

NEWS: Aloha Basically Stars Everyone You Love in Hollywood

"I knew that we would have a great chemistry," Cooper told ET. "At least I thought we would based on Wedding Crashers, a movie I'd done with her 10 years ago. I always thought, 'Wow! It's so easy to work with her.' She's so present and it only got stronger after 10 years."

If nothing else, the movie gets an A for casting.

Cooper and McAdams lead a star-studded cast that includes Emma Stone, John Krasinski, Alec Baldwin, Danny McBride, Jay Baruchel and Bill Murray in this story of a military contractor (Cooper) who screws up a major deal and is forced to return to his old life in Hawaii to help with a U.S. Space mission.

VIDEO: The Movies We're Most Excited To See In 2015

There, he tries to reconnect with an old flame (McAdams) while at the same time begins to fall for a young, overly enthusiastic Air Force pilot (Stone) assigned to keep an eye on him.

"It's such a wonderful thing to come to work with Bradley every day, because he has so much passion for not just his character but the whole film -- the whole process," McAdams said. "He approaches every scene like he wants it to be the best scene filmed ever."

While McAdams sang Cooper's praises, Stone gushed over Crowe.

VIDEO: 12 Movie Sequels We Can't Wait to See in 2015

"He is such a wordsmith," Stone said. "So many of the lines are perfectly crafted. He's a perfectionist and he will admit to that. And I have a tendency toward that too."

Aloha opens May 29.