In celebration of his 93rd birthday and new documentary "William Shatner: You Can Call Me Bill," William Shatner reflects on the many masks he's worn throughout his legendary career, including being an actor, philosopher, risk taker and animal lover.

William Shatner: You Can Call Me Bill is an intimate exploration of the life and career of William Shatner. From his unforgettable portrayal of Captain James T. Kirk in Star Trek to his diverse accomplishments