The movie "Rocketman" details the defining moments in the life of the legendary Elton John, whose career has spanned more than 50 years. But what's the true story behind the film? The movie shows how he went from humble roots to global stardom, and it wasn't always pretty. It goes back to Elton's upbringing in the U.K. in a family that didn't always support his love of music. InsideEdition.com's Mara Montalbano has more.