★★★½ (3½ out of 4)
How do you make a four-hour documentary about a man who won’t talk to you? That’s what happened when Alex Gibney decided to document the turbulent life and times of Elon Musk, a gargantuan ego and polarizing innovator. And it’s Gibney’s unique ability to turn dry, complex financials and intricate legal issues into gripping, fast-paced cinematic narratives that make his “Musk” doc seem short at 235 minutes.