Well if you think she's going to tell you, you're mistaken.  The Golden Compass star is keeping mum on the sex of her baby even though she knows what it is.

Oh it's not because she wants to keep it a secret, it's just she can't open her mouth because she sewed them shut.  With Botox.

"I know, but I'm not saying," the 40-year-old said, putting her finger to the trout lips her face gave birth to.