VIDEO: First Look: Rachel McAdams and Bradley Cooper Star in ALOHA

In his latest film, ALOHA, Oscar-nominee Bradley Cooper plays a military contractor who returns to Hawaii for a big job. While trying to reconnect with an old girlfriend (Rachel McAdams), sparks start to fly between him and the watchdog (Emma Stone) who has been assigned to him.

Directed by Cameron Crowe, Aloha (in theaters on May 29) also includes Bill Murray, Alec Baldwin, John Krasinski and Danny McBride.

Below, E! News has the exclusive first look at Cooper and McAdams finally talking about what drove them apart.

"We broke up because you didn't show up to our vacation," McAdams says. "I had three days planned in San Francisco. I had things planned for us to do and things to tell you and you stayed in Guam."

Cooper reluctantly remembers that time: "You said, 'If you don't show up on this vacation then that's it.'"

"Because you're a workaholic who creates work to avoid real work," McAdams says.

"Well, I'm still working on it," Cooper replies. "But to me, a vacation can't be an ultimatum. How can you relax on an ultimatum vacation? The whole concept is stressful."