Not everyone is born a star. For some celebrities, it takes years of hard work, small roles, and persistence to make it in show business.
This was the case for Jeremy Renner, who didn't get his big break until "The Hurt Locker" in 2008 when he was 37 years old.
He went on to become Hawkeye in 2012's $1.5 billion hit "The Avengers" and is now a household name.
Yet, Renner isn't the only late-bloomer when it comes to fame and success in Hollywood.
Jon Hamm almost gave up acting at age 36.
Hamm spent years trying to become an actor starring in minor roles, and according to his longtime girlfriend Jennifer Westfeldt, he almost gave it all up.
"He would just say, I’m going to hang it up, it’s not going to work out,"Westfeldt told The Huffington Post.
However, Hamm landed the "Mad Men" role in 2007 even though he felt he was at "the bottom of the list" and created one of the most interesting characters in the history of television.
Susan Boyle became a singer at age 47.
The story of how Susan Boyle became famous is now somewhat legend.
In 2008, a 47-year-old Boyle auditioned on "Britain's Got Talent" singing "I Dreamed A Dream" from "Les Miserables."
As judges like Simon Cowell and Piers Morgan scoffed at the looks of Boyle, she went on to surprisingly belt out the song, which led to one of the most-watched YouTube videos of all time.
Even though she ultimately lost in the finals, the exposure online led Boyle to get her own album, go on tour, and to live her dream in real life.
Harrison Ford was a full-time carpenter until 35.
For the first half of his life, Ford he was nothing more than a carpenter.
It wasn't until director George Lucas saw Ford doing some wood-working at a studio while having auditions for a space film he was shooting called "Star Wars" that things changed.
According to Lucas, he knew Ford from working with him on a small role in his previous film, "American Graffiti" and asked Ford to read scenes in the role of Han Solo.
The rest became history in a galaxy far, far away.
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