In an age where just about every detail of every celebrity’s private life is readily available online, Mad Men star January Jones has somehow achieved the impossible: For over two years now, she has managed to keep the identity of her son’s father a secret.

As you can imagine, this has led to rampant speculation on gossip blogs. Some of the candidates that have floated around as a possible father include X-Men: First Class director Matthew Vaughn, SNL star Jason Sudeikis, and X-Men co-stars Michael Fassbender and James Marsden.

But in a recent interview with Playboy, Marsden insists that we can cross him off that list. “There’s so much stupid talk out there,”; says the 40-year-old actor. “I think that came from somebody thinking we were both in X-Men so it must be true. Every time I see January, she’s like, ‘Hey, father of my baby.'”

Elsewhere in the interview, Marsden reveals that the upcoming Anchorman 2: The Legend Continues, in which he plays Ron Burgundy’s rival news anchor Jack Lime, easily stands as the highlight of his career. “X-Men fans may be let down, but Anchorman 2 is the first movie in my career I’ve wanted to see after I finished it,”; he says. “I’m an obsessed Anchorman fan. What’s weird is, Steve Carell and Will Ferrell would sit there and say, ‘Didn’t this happen in the original? Didn’t you say this?’ They couldn’t remember their own movie. I kept thinking, How can they not know every line from one of the greatest comedies of our time?”

But perhaps the memorable revelation that Marsden makes comes when he recounts how he nearly prevented Calista Flockheart and Harrison Ford from becoming an item. “I did the last season of Ally McBeal, and it was right when Harrison was starting to date Calista Flockhart,”; he says. “I had become friends with her, and one night she said, ‘Come to dinner with me and Harrison. I’m like, ‘Me, you and him?’ It turned out to be a small group of us, thankfully, but I ended up as her wingman.”;

Marsden continues, “We had dinner someplace in Brentwood and then went back to his house. He put music on and made everybody drinks. He was giggly and goofy around her but pretty aloof with the rest of us. I kept thinking we should leave the two of them alone, but Calista was like, ‘Don’t leave, don’t leave, don’t leave.’ I’m making him sound like a rapist, but he was very hospitable. She was just really nervous. Anyway, we had more drinks, he played more music, and then at some point he gave me a look that said, ‘Okay, you’ve got to get the f**k out of here.'”