Have Kellan Lutz and AnnaLynne McCord made a love rematch? After splitting in fall 2010 following about two years of dating, the sexy stars were spotted arriving at the Vancouver airport Tuesday night.

"They were playful with each other," a witness says. "Laughing and smiling at everything!"

The 90210 actress, 23, "looked really happy," the observer adds, noting that they both boarded the same car bound for the Sutton Place Hotel.

Lutz, 26, was in the British Columbia city to shoot scenes with Kristen Stewart and other colleagues for Breaking Dawn. What is McCord doing in Vancouver? "To see him!" another source says. "It definitely seems like they are together."

But don't expect the couple to open up too much about their rekindled romance. Although they walked and cuddled on their first red carpet together for the June 2010 Eclipse premiere, they've spoken very little about their relationship to the press.

"I've known her for six years, and we met again on the set [of 90210], but we shot Abercrombie [catalogs] way back in the day," Lutz said simply in late 2009. After their October 2010 split, McCord briefly rebounded with sexy model Aaron O'Connell, whom she debuted at a Vegas Halloween bash.