For the September 2009 premiere of "The Lucky Ones" Rachel pinned her short hair up in loose ringlets.
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Faux or No?
We think this bob was the real thing at "The Time Traveler's Wife" premiere in August 2009, but you never can tell with the Hollywood set.
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Blonde and Braided
Just four months later, McAdams debuted this long braided look at the premiere of "Sherlock Holmes" in the UK. Either she's got the hair-growing power of Superman, or this braid is an extension.
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"The Rachel"
Is anyone else having "Friends" flashbacks? Rachel sported, uh, Rachel at the NYC premiere of "Morning Glory" in November 2010.
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Lighten Up
McAdams' locks looked slightly brighter at the Cannes Film Festival in May 2011.
