Kristen Bell Credit: Joe Scarnici/Getty; C Flanigan/FilmMagic (inset)

Kristen Bell is a busy mama-to-be! The actress premiered her new movie, The Lifeguard, during the Sundance Film Festival in Park City, Utah, Jan. 19. "I'm feeling great," the 32-year-old told Us Weekly while rubbing her baby bump at the official afterparty at Nur Khan Presents on Main Street.

Wearing a purple tunic and a black leather jacket, the pregnant star chatted up costars Mamie Gummer, David Lambert, Alex Shaffer, Martin Starr, Paulie Litt and Joshua Hart during the fete. Bell told Us her fiance, Dax Shepard, had stayed behind at their home in L.A.

While many were opting cocktails during the celebrations this week, Kristen was seen opting for healthy water like Activate which was available nearby.

Before Bell flew to Utah, the actress chatted with Entertainment Weekly about her new movie and her bun in the oven. "I'm due end of spring. I'm not not pregnant. When you see me [at Sundance], it will be obvious," the Michigan native said. "This is without question the biggest transition I'll make in my life to date."

Luckily for Bell, she's had a relatively easy pregnancy. "You kind of go brain dead when you're pregnant. You're kind of in a Dopamine phase," she said. "I'm kind of happy all the time, and dumb."

In addition to promoting The Lifeguard, Bell has also been shooting the second season of Showtime's House of Lies. "They are always trying to hide my pregnancy. I'm always hiding behind a box, or a purse," she said of her character, who is not pregnant. "I love working on that show more than I can possibly explain. . . We'll stop filming around Feb. 12, around Valentine's Day, so I'll have a little bit of pregnancy time after."