Actor and producer who won a Golden Globe Award for Best Actor for his role in The Aviator in 2004. He has also appeared in This Boy's Life, The Wolf of Wall Street, Blood Diamond, and Catch Me if You Can.
He was nominated for an Oscar for his role as an autistic boy in What's Eating Gilbert Grape. His signature role was the artist Jack Dawson in Titanic in 1997, and he has since starred in Inception, Shutter Island, and Django Unchained.
Before anyone knew who he was, he appeared on the TV sitcom Growing Pains with Kirk Cameron.
He began his career by acting in commercials and educational films under the name Lenny Williams. He was kicked off the set for Romper Room when he was five years old for disruptive behavior.
He dated actress Blake Lively in 2011 and in 2015, he began a relationship with Rihanna.