January Jones has revealed X-Men First Class director Matthew Vaughn is rushing to finish the movie for its release date after filming over-ran.
The Mad Men star plays mutant telepath Emma Frost who has the ability to turn her skin into diamond in the film, which co-stars James McAvoy and Michael Fassbender - and she's quoted by movie blog Screenrant.com as saying that shooting was behind schedule.
January reportedly joked: "Poor Matthew Vaughn is going to have to edit it in three days."
She went on: "I think it was unrealistic for them to think they were going to make such a huge movie in whatever we had - two months or something.
"So of course we went over [schedule] I think I have a couple more days to shoot... We're almost done. The fact we've had to push the wrap date but they haven't moved the release date is really interesting to me.
"I guess they must know what they're doing. I have a lot of faith in Matthew as a director and an editor, I think his movies are great. And I think they've been cutting as we've been going. We should be fine."
Meanwhile, the blonde beauty dressed up as sequinned cupid as she appeared on Jimmy Fallon's comedy talk show for a Valentine's Day special.
January, wearing a Wonder Woman-inspired outfit, discussed the possibility of a fifth series of Mad Men with the talk show host before joining in a bow and arrow-themed drinking game.