8. Sylvester Stallone
Before Rocky made him a star, Sylvester Stallone was broke and even sold his beloved dog for $25 just to afford food. He refused to sell his Rocky script unless he could star in it, despite no one believing in him.
After countless rejections, a studio finally agreed. Rocky became a massive hit, and Stallone famously bought his dog back for thousands. His story is a powerful testament to believing in yourself no matter what.