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LONDON, ENGLAND - OCTOBER 24: (L-R) Rachel McAdams, Benedict Cumberbatch and Tilda Swinton in front of the Doctor Strange inspired 3D Art at a fan screening, to celebrate the release of Marvel Studio's Doctor Strange at the Odeon Leicester Square, on October 24, 2016 in London, United Kingdom. (Photo by Jeff Spicer/Getty Images for Disney)

LONDON, ENGLAND - OCTOBER 24:  (L-R) Rachel McAdams, Benedict Cumberbatch and Tilda Swinton in front of the Doctor Strange inspired 3D Art at a fan screening, to celebrate the release of Marvel Studio's Doctor Strange at the Odeon Leicester Square, on October 24, 2016 in London, United Kingdom.  (Photo by Jeff Spicer/Getty Images for Disney)

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LONDON, ENGLAND - OCTOBER 24: Rachel McAdams in front of the Doctor Strange inspired 3D Art at a fan screening, to celebrate the release of Marvel Studio's Doctor Strange at the Odeon Leicester Square, on October 24, 2016 in London, United Kingdom. (Photo by Jeff Spicer/Getty Images for Disney)

LONDON, ENGLAND - OCTOBER 24:  Rachel McAdams in front of the Doctor Strange inspired 3D Art at a fan screening, to celebrate the release of Marvel Studio's Doctor Strange at the Odeon Leicester Square, on October 24, 2016 in London, United Kingdom.  (Photo by Jeff Spicer/Getty Images for Disney)

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LONDON, ENGLAND - OCTOBER 24: Tilda Swinton in front of the Doctor Strange inspired 3D Art at a fan screening, to celebrate the release of Marvel Studio's Doctor Strange at the Odeon Leicester Square, on October 24, 2016 in London, United Kingdom. (Photo by Jeff Spicer/Getty Images for Disney)

LONDON, ENGLAND - OCTOBER 24:  Tilda Swinton in front of the Doctor Strange inspired 3D Art at a fan screening, to celebrate the release of Marvel Studio's Doctor Strange at the Odeon Leicester Square, on October 24, 2016 in London, United Kingdom.  (Photo by Jeff Spicer/Getty Images for Disney)

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LONDON, ENGLAND - OCTOBER 24: (L-R) Rachel McAdams and Benedict Cumberbatch in front of the Doctor Strange inspired 3D Art at a fan screening, to celebrate the release of Marvel Studio's Doctor Strange at the Odeon Leicester Square, on October 24, 2016 in London, United Kingdom. (Photo by Jeff Spicer/Getty Images for Disney)

LONDON, ENGLAND - OCTOBER 24:  (L-R) Rachel McAdams and Benedict Cumberbatch in front of the Doctor Strange inspired 3D Art at a fan screening, to celebrate the release of Marvel Studio's Doctor Strange at the Odeon Leicester Square, on October 24, 2016 in London, United Kingdom.  (Photo by Jeff Spicer/Getty Images for Disney)

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LONDON, ENGLAND - OCTOBER 24: (L-R) Benedict Wong, Tilda Swinton, Benedict Cumberbatch, Rachel McAdams and Mads Mikkelsen attend the fan screening event for "Doctor Strange" on October 24, 2016 in London, United Kingdom. (Photo by Dave J Hogan/Dave J Hogan/Getty Images)

LONDON, ENGLAND - OCTOBER 24:  (L-R) Benedict Wong, Tilda Swinton, Benedict Cumberbatch, Rachel McAdams and Mads Mikkelsen attend the fan screening event for "Doctor Strange" on October 24, 2016 in London, United Kingdom.  (Photo by Dave J Hogan/Dave J Hogan/Getty Images)