In Two-Lane Blacktop, released in 1971, James Taylor made his acting debut as “The Driver,” a quiet, focused street racer with a thousand-yard stare and a lead foot. Director Monte Hellman spotted Taylor on a Sunset Strip billboard and cast him for his moody presence, not his résumé. With no prior acting experience, Taylor brought a cool, detached intensity that fit the film’s stripped-down, drifting-through-America vibe like a glove. Behind the wheel of that ’55 Chevy, he didn’t need to say muc