PHOTOS: Robert Pattinson Goes Up, Up and Away

Going through airport security isn't fun for anyone, including mega famous heartthrobs like Robert Pattinson -- but R-Pattz managed to crack a smile in line at LAX today as he heads up to Vancouver to start filming Eclipse.

While their castmates were in Canada last week, Rob and Kristen Stewart stayed behind in L.A. to hang out: Rob sped away from Kristen's house in his convertible on Thursday and Kristen made a stealth exit from Robert's hotel on Friday morning. The Twilight cast reunited at the Teen Choice Awards taping last night.

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