Your favorite star may look one in a million, but in a world of 6 billion people, that still means that 6,000 people look just like you. Hollywood stars are no exception. They all have people that look like them, and some of them happen to be celebrities too. Some of them look so similar, not only fans get them confused, but family and friends confuse them too. Here are 12 celebrity twins, see if you can tell them apart.

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Amy Adams is the girl next door, she plays Lois Lane in the upcoming Justice League movies. Isla Fisher is a gorgeous comedic actress known for the hit comedies Wedding Crashers and Hot Rod. Both have red hair and both get confused for one another. Amy Adams has once said she doesn't understand why people think she looks like Isla Fisher. For the most part she's mainly flattered, as she thinks there's worse people for people to compare her with than the gorgeous Fisher.

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Minka Kelly is the celebrity who might be best known as Derek Jeter's former fiancee. Leighton Meester is best known for her breakout role in Gossip Girl. Minka Kelly and Leighton Meester look so much alike that they were in the suspense movie 'The Roommate' about one woman trying to take over the life of her roommate by imitating the other.

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Zoe Saldana is best known for her role in Avatar. Mrs. Will Smith, Jada, is known for her role in the television show, Gotham. In this picture,Zoe Saldana and Jada Pinkett Smith both light up the red carpet with the exact same smile. Can you tell who is who?

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Nina Dobrev and Victoria Justice are both television stars. Nina Dobrev is know for the show, The Vampire Diaries. Victoria Justice is known for the show, Victorious. The weekly magazine, US Weekly once published a picture of Victoria Justice thinking it was Nina Dobrev. It's understandable since Victoria and Nina both admitted that even close friends and co-workers have mixed up the two.

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Daniel Radcliffe and Elijah Wood are stars of two of the biggest movie franchises of all time. Radcliffe played the title role in the Harry Potter franchise. While Wood played Frodo Baggins in the Lord of the Rings franchise. Daniel Radcliffe knows he looks like Elijah Wood. Radcliffe once had to autograph a photo of Wood for a confused fan. He signed it 'I am not Elijah Wood, love Daniel'.

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Rachel Bilson is the star of television shows The O.C. and Heart of Dixie. Selena Gomez is a superstar pop singer, also known as the former girlfriend of Justin Bieber. And even though there's a 10 year difference in their ages, Selena Gomez and Rachel Bilson look like sisters if not twins.

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Actors Ryan Gosling and Ryan Reynolds have a lot in common. They're both from Canada. They both have the first name Ryan. And they both have dashingly handsome good looks. Ryan Gosling is best known for his breakout role in the movie The Note Book. Ryan Reynolds has been the star of many hit movies, but may be best known as the ex-husband of Scarlett Johansson and now husband of Blake Lively.

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When Star Wars Episode I was filming, actress Keira Knightley was still an unknown actress. But she did have an uncanny resemblance to star, Natalie Portman. Knightley played a bit part as Portman's decoy when she needed to escape from the baddies. The two looked so much alike, during filming, even their mother's had trouble telling them apart and had trouble distinguishing the two.

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Movies star Matt Damon and Mark Wahlberg look quite similar and sound even more alike when they let their Boston accents loose. The two often get confused for each other, so they worked out a deal to pretend to be extremely polite and not get offended to any fans who confuse the two stars.

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Even though Jeffrey Dean Morgan is a super sexy White actor. And Javiar Bardem is a super sexy Hispanic Actor. The two men's rugged good looks often get them confused for each other. Grey's Anatomy star Jeffrey Dean Morgan has said that sometimes confused fans will come up to him speaking Spanish mistaking him for Spanish actor Javier Bardem.

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New Girl actress Zooey Deschanel and superstar pop singer Katy Perry both have dark hair with big blue eyes, that constantly get the two confused with each other. Deschanel has admitted that the constant comparison of her looks with Katy Perry can be a bit tiresome and annoying.

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