Caught in the Act

Kirsten Dunst Kisses New Beau Garrett Hedlund at Sundance

01/25/2012 at 06:00 AM EST

They're going public!

Kirsten Dunst wasn't shy with the PDA with new beau Garrett Hedlund at the Sundance Film Festival. The two were kissing and hugging at a dinner for Dunst's new movie, The Bachelorette, hosted by Joico and Simple House. The couple danced the night away with friends and fellow attendees, including Will Ferrell, who is one of the comedy's producers, Justin Long and Rashida Jones.

According to a partygoer at the WireImage tent, where the intimate dinner for 40 guests took place, Hedlund didn't really leave his girlfriend's side after the two made their late arrival. They also toasted to the film together.

Adds a source: "Kirsten and Garrett have been spending time together since the holidays. They were friends on the set of On the Road, and now they've grown closer. They spent Christmas together and he feels very strongly about her."
– Jennifer Garcia and Dahvi Shira

NEXT: Hugh Jackman Steps Out for Sushi