Well, the cat is out of the bag. Mickey Rourke is not a Robert De Niro fan.

Over the weekend, Mickey slammed the actor, claiming he would “embarrass” Robert should their paths cross while seemingly referencing past comments made about Martin Scorsese’s crime drama The Irishman.

“Hey Robert De Niro, that’s right i am talking to you, you big f–king crybaby,” he began. “A friend of mine just recently told me that a few months back you’re quoted as saying to newspapers ‘Mickey Rourke’s a liar he talks all kind of s–t’. Listen Mr. Tough Guy in the movies, you’re the 1st person that ever called me a liar and it was in a newspaper.”

Reportedly, their feud dates back 30 years. Mickey claimed last year that he was blocked from appearing in The Irishman because of Robert.

“Marty Scorsese, great director, he wanted to meet me for a movie with Al Pacino, Joe Pesci, Chris Walken and Robert De Niro,” he said on the Italian TV show, Live — Non è la D’Urso. “The casting person told my manager that Robert De Niro said he refused to work with me in a movie.”

Eek! We guess we’ll just have to wait and see how this plays out.