Unfortunately, she isn't going to talk about it.
"I don't get angry when I get asked," she told the Associated Press. "I [just] would never give details about it and I think everyone understands why--because that is the only way to maintain some reality."
Still, the chemistry between the two stars on the Sky set was evident to all. Cruz credits writer/director Cameron Crowe with creating a comfortable environment where everyone was able to work well together.
"What [Crowe] created on the set was magic from day one," she said.