Kristen Bell & Mamie Gummer: 'Lifeguard' Sundance Portrait Session

Kristen Bell and Mamie Gummer show off their smiles for The Lifeguard portrait session during the 2013 Sundance Film Festival on Saturday (January 19) at Village at the Lift in Park City, Utah.

The two co-stars sandwiched in their cast mate David Lambert, who was also joined by Alex Shaffer, Martin Starr, Paulie Litt, Joshua Harto, and writer/director Liz W. Garcia.

That same day, Mamie hit up the Village At The Lift to greet fans and hang out.

The day before, pregnant Kristen showed off her baby bump on the red carpet of the premiere of the flick held at the Library Center Theater.

FYI: Kristen is wearing an Isabella Oliver leather jacket.

15+ pictures inside of Kristen Bell and her co-stars at The Lifeguard portrait session…