Rebecca Romijn told IESB.net that she finished filming X3 over two months ago.
"She also mentioned her character, Mystique, has more to do and goes for a bit of a heart break, but not necessarily romantic," the fan site says.
However, Romijn says she won't return for The Punisher2.
You can see the video interview here.
Meanwhile, new publicity photos from X3 have hit the Web. Check them out below:
The film premieres May 26.