Nick Cassavetes has revealed that Ryan Gosling asked him to replace his co-star Rachel McAdams on The Notebook because he couldn't stand working with her.
Gosling - who played hopeless romantic Noah Calhoun in the movie - is said to have asked director Nick Cassavetes to find someone else to play his love-interest Allie Hamilton during filming because of his lack of chemistry with McAdams.
Cassavetes revealed: "Maybe I'm not supposed to tell this story, but they were really not getting along one day on set. Really not.
"And Ryan came to me, and there's 150 people standing in this big scene, and he says, 'Nick come here'.
"And he's doing a scene with Rachel and he says, 'Would you take her out of here and bring in another actress to read off camera with me?'
"I said, 'What?' He says, 'I can't. I can't do it with her. I'm just not getting anything from this'."
However, rather than giving up on the pair - who later dated on-and-off for four years - Cassavetes decided to set up an impromptu therapy session.
He told VH1: "We went into a room with a producer, they started screaming and yelling at each other. I walked out ... I smoked a cigarette and everybody came out like, 'All right let's do this'. And it got better after that, you know? They had it out.
"I think Ryan respected her for standing up for her character and Rachel was happy to get that out in the open."
Although he was able to finish the film, which has developed a cult following since its release in 2004, he admits the co-stars still had difficulties after their argument.
He added: "The rest of the film wasn't smooth sailing, but it was smoother sailing."