Actor Ryan Reynolds rose to fame in the late 1990s with the sitcom, Two Guys and a Girl. Since then, he has steadily become one of the biggest actors in Hollywood. With roles in such films as Van Wilder, Green Lantern, and Deadpool, his films have amassed much success. One role in particular though, took quite a toll on the actor physically.
In the Rodrigo Cortés directed thriller, Buried, Reynolds reveals he came away from the part with some pretty serious injuries. The film, which came out in 2011, centers around an American truck driver (Ryan Reynolds) based in Iraq, who awakens buried alive in a coffin, armed only with a lighter and a cell phone. Due to most of the filming being done inside the claustrophobic quarters of a coffin, the actor experienced loss of skin, bleeding, and hair loss on the back of his scalp. The fortunate thing for Reynolds was that all were temporary, including the hair loss.
The hair loss he experienced was most likely caused from a lack of circulation his scalp received due to lying on a hard surface for a prolonged length of time. This type of hair loss is similar to traction alopecia and is usually temporary. Also, since the head is an area of the body that receives good circulation, the better chance it would grow back.