Ryan and Rachel: Back On?

Have Rachel McAdams and Ryan Gosling rekindled their flame? The Notebook costars reportedly broke up this summer, but the native Canadians (both hail from Ontario) looked very much the happy couple on Sunday in Toronto, where they took their dog to the park.

Gosling in is town shooting scenes for his new film, Lars and the Real Girl. The 25-year-old actor is receiving high praise for his latest performance as an idealistic teacher struggling with drug addiction in Half Nelson. Not bad for a former Mouseketeer!

McAdams, 30, recently finished shooting Marriage, a 1940s era drama about an adulterous man who plots to kill his wife to spare her the humiliation of a divorce.

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