Mischa Barton Closes the Ring

Mischa Barton promotes her new drama romance Closing the Ring at The Late Late Show in Dublin, Ireland on Friday.

The 21-year-old former O.C. actress plays the young, lively, and optimistic Ethel Ann, who falls in love with a young farmer, Teddy Gordon (played by Canadian new comer Stephen Amell).

Later in the evening, the 21-year-old former O.C. actress and her mother, Nuala, partied at Krystle nightclub.

Closing the Ring opens in UK theaters next Friday, Dec. 28.