Swedish actor Dolph Lundgren, 68, says seeking another doctor's view after a kidney cancer diagnosis was the decision that turned everything around. He has spoken publicly about the experience in a new documentary, "Dolph: Unbreakable," which is now drawing reviews from critics and audiences.

Lundgren also has a memoir out covering personal chapters from his career, including the story behind a well-known red carpet confrontation with Jean-Claude Van Damme. The documentary and book come out at the same time, giving fans a rare glimpse at the health battle and life the Swedish actor has mostly kept to himself.