Just watched this promotional M-G-M short-shown to exhibitors-on their upcoming films for the 1967-68 season. The only movie from the trailers they showed I actually watched beforehand was The Feerless Vampire Killers which I remembered being amused by if a little confused. At the end, they showed a little test footage from 2001: A Space Odyssey which I've seen twice, both times I wasn't completely enamored of it though it was always a fascinating watch. I've also seen The Phantom Tollbooth though I didn't recognize the brief images presented for that as from the movie. I remember enjoying that a little. Anyway, this was a fascinating document I watched on YouTube as uploaded from TCM.