Robert Pattinson Enjoying Toronto with Map to the Stars Co-Star Sarah Gadon [VIDEO]

Twilight heartthrob Robert Pattinson has started shooting Map To The Stars, in Toronto. The 27-year-old actor plays the role of Jerome, a limousine driver and aspiring actor. He will be seen opposite Australian actress Mia Wasikowska.

Meanwhile, Pattinson who ended his relationship with Twilight co-star and girlfriend Kristen Stewart, is bonding well with another co-star - Canadian actress Sarah Gadon - on the film set. The 26-year-old actress was also seen with Pattinson in the David Cronenberg-directed Cosmopolis.

"The pair are filming out in Toronto and they have an obvious chemistry. They laugh a lot," a source told the Mirror, "But they are also very serious about their work and have been discussing their roles and rehearsing loads together, one on one. Sarah helped Rob choose a cool waterside property during filming and they have been hanging out a lot wherever possible. They share similar backgrounds. On paper they would make a very cute couple."

"Rob is in no hurry to get a new girlfriend, though, so officially he and Sarah are still very much just friends - but it's definitely a case of watch this space," the insider added.

Pattinson and Stewart broke up last year after it was confirmed she cheated on the Remember Me actor with British director Rupert Sanders.

Pattinson was also romantically linked with French model Camille Rowe, with whom he shared a passionate kiss in a new Dior Homme fragrance advertisement.

While Pattinson is in Toronto, Stewart is busy filming Camp X-Ray in Los Angeles. The film is directed by Peter Sattler. She plays the role of a soldier named Cole, assigned to Guantanamo Bay, and will be seen along with Tara Holt and Lane Garrison.

"Kristen is finding a lot of support in Peter," a source said, "She feels safe around him, like she can really let her guard down and be vulnerable. Kristen is putting her all into this film. She wants it to be her best performance yet."

See Robert Pattinson and Sarah Gadon together in the trailer for Cosmopolis, below: