Whoops! Stars get forgetful at Sundance

It must be the high altitude, but celebs at the Sundance Film Festival have been forgetting their belongings left and right.

A source told us that Laura Prepon lost her sunglasses after putting them on top of her car and forgetting to retrieve them before she drove off. Unable to go sans shades, she stopped by the Solstice Sunglass Boutique for a replacement Tommy Hilfiger pair.

Another source dished that Kristen Bell, fiance Dax Sheperd and “SNL” funnyman Andy Samberg all left their winter boots back at home (Come on, guys, it’s a ski town!). Luckily, Sorel winterized the stars with free pairs of boots.