The Winter's Bone star is set to play blue-skinned shape shifter Mystique in the prequel, a role which Romijn made famous in the first three movies and requires the actress to be spray-painted blue every day.
And Lawrence asked the Ugly Betty star for advice on how to feel less restricted by the role's heavy cosmetics - with Romijn telling her to ignore all the strict warnings given by the make-up artists.
Lawrence tells The Washington Post, "Her advice was mostly just kind of, 'Don't worry about it. Don't listen to what they tell you.' Because they tell you not to drink alcohol or eat spicy food, because they remove the make-up with alcohol. And she just said, 'Don't listen to that. It will drive you crazy.'"