​Rachel McAdams’ family tree might include a revelatory link to Canadian politics

TLC’s Who Do You think You Are? is set to profile Mean Girls star Rachel McAdams in August, and after a quick sneak peek it seems something big is afoot.

The documentary series, which began on the BBC and was later picked up by NBC and now TLC, tracks the genealogy of A-list stars.

In the trailer, the London, Ontario-born actress is seen with her sister in Ottawa with voiceover stating, “To know who you are, you have to know where your story began.”

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The sisters are seen driving down what appears to be Wellington Street, touring the Department of National Defence building and even traipsing about the Rideau Centre and Parliament Hill.

There is little else to go on besides Rachel saying, “there are so many stories here.”

Given that London and Ottawa aren’t exactly a great distance apart, it wouldn’t be difficult to believe that The Notebook actress has some sort of peripheral link to the nation’s capital, but given the suspense in the snippet, it appears the link could be quite substantial.

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Other participants on the show include Sex and the City's Cynthia Nixon, whose story includes an axe-wielding murderer, and Jesse Tyler Ferguson.

Answers to Rachel's story and more are slated to be revealed in August. Rachel is currently promoting her new film, A Most Wanted Man.

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