Once Batman, now Birdman, Michael Keaton either became world famous by accident, and then went missing on purpose, or the other way around. The 68-year-old actor’s circuitous career is marked by distinct eras — from zany ‘80s comedies, to block-busting New Hollywood fare, to 15 pretty lean years, to a comeback in 2014.

On this week’s show, we watched three films where Keaton plays his favorite concerto — losing his mind on camera. It’s “Birdman” (2014), “Beetlejuice” (1988) and “Mr. Mom” (1983). Joining in to make us smarter are two guests: Keaton fanatic and The Kickback frontman Billy Yost and film historian Alison Macor, who just released a biography of the screenwriter of both “Beetlejuice” and “Batman.”

For your hosts' part, an argument ensues. Is Michael Keaton’s weirdness a net positive for his movies?