The Hangover, Part II is set to open in theaters this weekend… or, is it? One thing may still delay the opening -- Mike Tyson’s facial tattoo.

More specifically, the fact that Ed Helms is wearing it in the flick (or, something that looks a lot like it). The tattoo artist who originally put the ink on Tyson’s face is suing Warner Bros. for copyright violation. S. Victor Whitmill, the artist behind the suit, is also asking for an injuction which would block the film’s May 26 release.

Warner Bros. has argued that, since Tyson appeared in the first Hangover in 2009, they have the right to use the design for another of their characters (in this case, Dr. Stu Price).

And how does Mike Tyson feel about the whole affair? “I was honored,” he said of Ed Helms wearing his tattoo in the flick. “It was more profound than my actual face being on [the poster] -- big time because it symbolizes me.”