12/07/2010 04:15 pm ET | Updated May 25, 2011

Jeremy Piven Reportedly Dating Katja Decker Sadowski

Has Ari struck romantic gold? Radar Online is reporting that 'Entourage' star Jeremy Piven has a new leading lady: Katja Decker Sadowski, former fiancée of 'The Hills' actor Jason Wahler.

Piven, at 45, is over double the age of 22-year old Sadowski, a law student at USC. The pair was seen at the movies in Los Angeles on Sunday, and Radar's source said they were enjoying more than the big screen.

"Jeremy and Katja looked really happy at the cinema," the source said. "They were holding hands as they waited in line to see the movie 'King's Speech' on Sunday night and they were kissing and cuddling one another throughout the film too."

Sadowski has a little bit of show business experience herself, having appeared in a few episodes of 'The Hills.' Her engagement with Wahler was called off in February, 2009.

For more on this story, head over to Radar Online.