Zac Efron & Vanessa Hudgens: Avatar Date Night!

Zac Efron strolls with two of his favorite girls — girlfriend Vanessa Hudgens and her lil sis Stella — as they leave the movie theater at Universal CityWalk on Monday night (December 28).

The threesome took in the much-talked about Avatar. Stella tweeted after, “Alright. so i went to see Avatar with ness and zac … then we got papparazzi’s and ran like avatars hehe:):)”

The Hudgens sisters were spotted out earlier last week, picking up some last minute Christmas supplies and engaging in a wrapping paper war.

FYI: Vanessa is sporting a Rebel Yell “Free Hugs” hoodie and Koolabura “Wings” Boot.

10+ pics inside of Zac laughing as Vanessa and Stella Hudgens running from paps…