Jessica Biel & Fan Have Impromptu Photo Shoot at Sundance
01/20/2013 AT 12:45 PM EST
The Emanuel and the Truth About Fishes actress had an impromptu photo shoot with a female fan when she visited the Variety Studio in Park City, Utah, on Saturday.
The duo posed for multiple shots in a Ciroc the Festival photo booth until they got a snapshot that was "just right," an onlooker tells PEOPLE.
"They were having a great time," the source adds.
– Patrick Gomez