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.
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Simplified Retro
McAdams kept her blonde hair simple and wavy at the Cannes premiere of "Midnight in Paris" in May 2011, because the real star of this show was her red Marchesa dress.
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Channeling Marilyn
McAdams was a dead ringer for the iconic starlet at the New York City premiere of "Midnight in Paris" in May 2011. It helps that she was able to hide her hair length with a faux bob.
