Kristen Stewart  sported a cute, casual ponytail as she arrived at the Vancouver airport and headed out of town earlier today. Kristen was only in Canada for a couple days, since she kicked off the week in NYC with Robert Pattinson  for his Water For Elephants world premiere on Sunday. Robert and Kristen were spotted kissing  as they left the afterparty late that night and as he continued his promotional tour this week, and she was headed back to the set of Breaking Dawn to finish up some final scenes. There are rumored reshoots still coming up for Robert and Kristen, so perhaps they are not saying goodbye to playing Edward and Bella just yet. Some of their costars, including Kellan Lutz  and Ashley Greene , just arrived in Vancouver yesterday for their last few days as Cullens, but the whole Twilight saga shooting should be complete by the end of the week.