This is the trailer for the 1970 re-release of my favorite movie, It's a Mad, Mad, Mad, Mad World. It is not one of the trailers produced by Stan Freberg for that film.
One odd thing about it is that Peter Falk gets better billing than he had in the movie and its original advertising. I have no idea how that came about. It might have made sense a year or so later when Columbo was a Top Ten TV show and Falk was a much bigger star than he'd ever been…but when this trailer was made, Columbo was a couple of as-yet-unsold TV pilots.
And the other odd thing about this trailer flows from the fact that Mad World was filmed in a super-widescreen format called Ultra Panavision 70. It was described at the time as Cinerama but some would argue it was not. I have no particular opinion on this.
But whatever you call its screen format, it's probably why this trailer was done in a little-used format called "Smilebox." The premise of Smilebox is that the screen gets distorted in a way that simulates the way you'd see the film if you were sitting in the middle of a Cinerama theater with the screen somewhat wrapping around you. I don't think it does that. I think it just looks weird.
I also think this trailer shows too much of the ending and the surprises in the film. If you've never seen the movie, don't watch this…