See Rachel McAdams' best red carpet looks

Rachel McAdams (Photo by Gregg DeGuire/WireImage)

Rachel McAdams during \"Red Eye\" Los Angeles Premiere - Arrivals at Mann Bruin Theater in Westwood, California, United States. (Photo by Todd Williamson/FilmMagic)

Rachel McAdams (Photo by SGranitz/WireImage)

LOS ANGELES, CA - JUNE 04: Actress Rachel McAdams arrives to the 2005 MTV Movie Awards at the Shrine Auditorium June 4, 2005 in Los Angeles, California. The 14th annual award show will premiere on MTV Thursday, June 9 at 9:00PM (ET/PT). (Photo by Frederick M. Brown/Getty Images)

BEVERLY HILLS, CA - OCTOBER 24: Actress Rachel McAdams arrives at the 9th Annual Hollywood Film Awards at The Beverly Hilton on October 24, 2005 in Beverly Hills, California. (Photo by Mark Mainz/Getty Images)

Rachel McAdams during Rachel McAdams Visits MTV's \"TRL\" - August 10, 2005 at MTV Studios in New York City, New York, United States. (Photo by Michael Loccisano/FilmMagic)

Rachel McAdams wearing Yves Saint Laurent (Photo by Djamilla Rosa Cochran/WireImage for Yves Saint Laurent)

NEW YORK - DECEMBER 14: Actress Rachel McAdams attends a special holiday screening of \"The Family Stone\" at the DGA Theater December 14, 2005 in New York City. (Photo by Paul Hawthorne/Getty Images)

LOS ANGELES, CA - JANUARY 28: Actress Rachel McAdams arrives at the 13th Annual Screen Actors Guild Awards held at the Shrine Auditorium on January 28, 2007 in Los Angeles, California. (Photo by Vince Bucci/Getty Images)

TORONTO, ON - SEPTEMBER 09: Actress Rachel McAdams arrives at \"Che (Part 1)\" premiere during the 2008 Toronto International Film Festival held at The Visa Screening Room at the Elgin Theatre on September 9, 2008 in Toronto, Canada. (Photo by Alberto E. Rodriguez/Getty Images)

TORONTO, ON - SEPTEMBER 10: Actress Rachel McAdams arrives at \"The Lucky Ones\" premiere during the 2008 Toronto International Film Festival held at the Roy Thomson Hall on September 10, 2008 in Toronto, Canada. (Photo by Malcolm Taylor/Getty Images)

FRANCE - SEPTEMBER 04: US actress Rachel McAdams poses for the photocall of ' The times traveler's wife' directed by Robert Schwentke during the 35th American Film Festival in Deauville, France on September 04th, 2009. (Photo by Alain BENAINOUS/Gamma-Rapho via Getty Images)

LONDON, ENGLAND - DECEMBER 14: Rachel McAdams attends the World Premiere of Sherlock Holmes at Empire Leicester Square on December 14, 2009 in London, England. (Photo by Ian Gavan/Getty Images)

DEAUVILLE, FRANCE - SEPTEMBER 04: Actress Rachel McAdams attends the 35th Deauville Film Festival Opening: \"The Time Traveller's Wife\" Premiere at the CID on September 4, 2009 in Deauville, France. (Photo by Foc Kan/WireImage)

NEW YORK - AUGUST 12: Actress Rachel McAdams attends the premiere of \"The Time Traveler's Wife\" at the Ziegfeld Theatre on August 12, 2009 in New York City. (Photo by Jemal Countess/Getty Images)

LAS VEGAS - APRIL 02: Actress Rachel McAdams, recipient of the Female Star of the Year Award, recipient of the Award, arrives at the ShoWest awards ceremony at the Paris Las Vegas during ShoWest, the official convention of the National Association of Theatre Owners, April 2, 2009 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

MADRID, SPAIN - JANUARY 13: Actress Rachel McAdams attends \"Sherlock Holmes\" premiere at Kinepolis cinema on January 13, 2010 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)

BERLIN - JANUARY 12: Actress Rachel McAdams attends for the 'Sherlock Holmes' German Premiere at CineStar on January 12, 2010 in Berlin, Germany. (Photo by Andreas Rentz/Getty Images)

HOLLYWOOD - MARCH 07: Actress Rachel McAdams arrives at the 82nd Annual Academy Awards held at Kodak Theatre on March 7, 2010 in Hollywood, California. (Photo by Alberto E. Rodriguez/Getty Images)

NEW YORK, NY - MAY 17: Actress Rachel McAdams attends The Cinema Society & Thierry Mugler screening of \"Midnight in Paris\" at Tribeca Grand Screening Room on May 17, 2011 in New York City. (Photo by Stephen Lovekin/Getty Images)

LONDON, ENGLAND - JANUARY 11: Harrison Ford and Rachel McAdams attend the UK premiere of Morning Glory held at The Empire Leicester Square on January 11, 2011 in London, England. (Photo by Dave Hogan/Getty Images)

Rachel McAdams arrives at the Midnight In Paris\" Premiere part of the 64th Cannes Film Festival at Palais des Festivals on May 11, 2011 in Cannes, France.

BERLIN, GERMANY - JANUARY 09: Actress Rachel McAdams attends the Premiere of 'Morning Glory' at the CineStar movie theater on January 9, 2011 in Berlin, Germany. (Photo by Anita Bugge/WireImage)

CANNES, FRANCE - MAY 12: Actress Rachel McAdams arrives at the 'Sleeping Beauty' premiere during the 64th Annual Cannes Film Festival at the Palais des Festivals on May 12, 2011 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

WESTWOOD, CA - DECEMBER 06: Actress Rachel McAdams arrives at the premiere of Warner Bros. Pictures' \"Sherlock Holmes: A Game Of Shadows\" held at the Regency Village Theatre on December 6, 2011 in Westwood, California. (Photo by Jason Merritt/Getty Images)

HOLLYWOOD, CA - FEBRUARY 02: Actress Rachel McAdams arrives at the 'Journey 2: The Mysterious Island' Los Angeles Premiere at Grauman's Chinese Theatre on February 2, 2012 in Hollywood, California. (Photo by Jason Merritt/Getty Images)

LONDON, ENGLAND - AUGUST 08: Actress Rachel McAdams attends the \"About Time\" world premiere at Somerset House on August 8, 2013 in London, England. (Photo by Gareth Cattermole/Getty Images for Universal Pictures)

MUNICH, GERMANY - AUGUST 10: Actress Rachel McAdams poses at the red carpet during the Universal Open Air Film Lounge with the special screening of 'Alles eine Frage der Zeit' at the Kino am Olympiasee on August 10, 2013 in Munich, Germany. (Photo by Hannes Magerstaedt/Getty Images)

LOS ANGELES, CA - JULY 13: Rachel McAdams attends the ESPN hosted screening of Southpaw at Regal Cinemas L.A. Live on July 13, 2015 in Los Angeles, California. (Photo by Charley Gallay/Getty Images for The Weinstein Company)

LOS ANGELES, CA - JULY 15: Actress Rachel McAdams attends The 2015 ESPYS at Microsoft Theater on July 15, 2015 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)

TORONTO, ON - SEPTEMBER 14: Actress Rachel McAdams attends the \"Spotlight\" premiere during the 2015 Toronto International Film Festival at the Princess of Wales Theatre on September 14, 2015 in Toronto, Canada. (Photo by Alberto E. Rodriguez/Getty Images)

BEVERLY HILLS, CA - JANUARY 10: Actress Rachel McAdams attends the 73rd Annual Golden Globe Awards held at the Beverly Hilton Hotel on January 10, 2016 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)

LOS ANGELES, CA - JANUARY 30: Actress Rachel McAdams attends The 22nd Annual Screen Actors Guild Awards at The Shrine Auditorium on January 30, 2016 in Los Angeles, California. 25650_013 (Photo by Dimitrios Kambouris/Getty Images for Turner)

BEVERLY HILLS, CA - FEBRUARY 08: Actress Rachel McAdams attends the 88th Annual Academy Awards nominee luncheon on February 8, 2016 in Beverly Hills, California. (Photo by Kevin Winter/Getty Images)