Here's quite a find — and thanks to Steve Stoliar for telling me about it. It's from 1952, as am I, and it's a film made for the sponsors of Groucho Marx's TV show, You Bet Your Life, to be shown at some sort of national sales convention. Groucho, glancing often at off-camera cue cards or his secret projection screen, comes off as the kind of person who should have been ridiculed by the Marx Brothers. We are promised a backstage tour but the film never goes backstage and there's no real tour — but it's worth watching…