Apparently, Lautner and Stewart arrived together for the evening but left in separate vehicles.

The actress has spoken out about the pressures of conforming to Hollywood ideals.
Kristen Stewart has discussed her relationship with actor Robert Pattinson – describing their pairing as a “product”.
Since then the vampire craze has already seemed to boom and then slowly fade out.
We all might know what Robert Pattinson and his ex-girlfriend Kristen Stewart are up to, but what about the rest of the Cullen clan?
Lautner packed on 30 pounds of muscle so he could keep the role, and that’s apparently why Jacob whips his shirt off at every possible chance in the movie.
(2012)Foy played the preternaturally beautiful and rapidly aging offspring of Edward and Bella, Renesmee Cullen."People think I'm trying to be rebellious, but that's the last thing I'm doing," she said earlier this week.The couple dated for five years but she eventually found their romance - which hit the rocks when she was unfaithful with her Snow White And The Huntsman director Rupert Sanders - stopped being 'real life' and became 'entertainment' for people.'People wanted me and Rob to be together so badly that our relationship was made into a product,' the 26-year-old dished to The New York Times' T magazine in an interview for its Fall Women's Fashion edition cover shoot.The actress said she would have the same reaction to questions about a relationship with co-star Taylor Lautner, who plays Jacob Black. If people started asking me if I was dating Taylor, I'd be like, '---- off!' I would answer the exact same way." Interest in the relationship has heated up as the pair promote the Twilight sequel New Moon, and Stewart is unapologetic about her attitude.She's doing some voice over work now, lending her lovely voice to the video game Batman: Arkham Knight.