25 Side-by-Side Photos of Real People and the Celebrities Who Played Them On-Screen

Stone portrays legendary tennis star Billie Jean King in the upcoming movie Battle of the Sexes. "Playing Billie Jean was a bit of a game changer," she tells Marie Claire. She also gained 15 pounds of muscle for the role. Fifteen. Pounds.

Will Smith in his prime. Smith played Muhammad Ali in the 2001 film—wait for it—Ali.

Blair played Jenner as her pre-Keeping Up with the Kardashians self in The People v. O. J. Simpson: American Crime Story.

Franco played daredevil Aron Ralston in the 2010 thriller 127 Hours, which tells the story of how Ralston was trapped in a canyon after a boulder fell on his arm.

They could be related, right? On the right is Joy Mangano, inventor of the Miracle Mop, whose story is featured in the 2015 film Joy.

Portman played Jackie in the 2016 film of the same name, which recounts Jackie's life after her husband's assassination. 

Michael Oher, the homeless teen and star of the 2009 film The Blind Side, admits the movie has negatively affected his football career. On the other hand, Bullock totally nails the role of his real-life adoptive mother Leigh Anne Tuohy.

We're really not sure if Abraham Lincoln was actually raised from the dead for this film, but Daniel Day Lewis doubles as the former president in the 2012 drama Lincoln.

None other than Dame Helen Mirren played Queen Elizabeth II in the 2006 drama The Queen.

Taraji P. Henson played the iconic yet often forgotten NASA mathematician Katherine Johnson in the 2017 film Hidden Figures.

Dorothy Vaughn was NASA's first African-American manager. Vaughn is one of the three main women in the 2017 film Hidden Figures, in which she was played by award-winning actress Octavia Spencer.

Jackson's the third women in Hidden Figures known for her impeccable engineering skills at NASA. Monáe says she was "honored" to play the role of Jackson.

Theron plays serial killer prostitute Aileen Wuornos in the 2003 biographical drama film Monster. Wuornos was executed in Florida in 2002 after killing six men.

Kutcher is the ultimate doppelgänger portraying former Apple CEO Steve Jobs in the 2013 film Jobs.

Based on a true story, Lion details the life of five-year-old boy Saroo Brierley, who falls asleep on a train and loses his family. Patel plays Brierley and even met him IRL.

Julia Roberts plays Gilbert in the 2010 film Eat Pray Love, based on Gilbert's best-selling novel.

Eisenberg portrayed the onscreen version of Facebook cofounder and CEO Mark Zuckerberg in The Social Network, and Zuckerberg was totally not happy about how it turned out.

We're not crying, you're crying. Will Smith played real-life single father Chris Gardner, whom Smith mirrored in 2006's The Pursuit of Happyness. Smith's real son Jaden Smith played Gardner's son in the movie.

Wahlberg plays Eagles football player Vince Papale in the 2006 film Invincible.