Paquin, who delivered the newborns over the summer (12), has been cast as a call girl alongside Tom Hiddleston in upcoming crime thriller Black Wings Has My Angel.
Hiddleston is set to star as a criminal who attempts an armed robbery, but he admits the film has been put on the back burner while the True Blood star enjoys her maternity break.
He tells the Associated Press, ""Black Wings Has My Angel is based on a novel by Elliott Chaze, it's a sort of noir thriller. It's a great script. I signed onto it a long, long time ago.
""Anna Paquin was going to play opposite me, she's had a baby (sic), so being a mum is much more important than being whatever that low life character is. It was a sort of fun noir thing, but it's way, way off in the future.""
Paquin's two new arrivals are her first kids with husband and True Blood co-star Stephen Moyer.