Godzilla vs. Space Godzilla: The DVD
Believe it or not, this actually applies to "To Sir, With Love."
A couple years ago, we got this movie on DVD for my mother; its one of her favorite movies of all time, and the reason she's a big Sidney Poitier fan. It was a double-sided DVD, which would, in theory, have the Widescreen version on one side, and the Full-screen version on the other.
Those of you who were scratching your heads at the title of this message have likely had a moment of horrible awareness of what actually happened.
One side was, indeed, the full screen version of "To Sir, with Love." The other side was "Godzilla vs. Space Godzilla"... as th only time I've checked I was about to watch the movie with my mom, I don't know if it was full-screen or widescreen.
I tried getting in contact with the distributors, but they have a website that discourages actual information, in favor of marketing. Since mom likes full-screen versions just fine, we never bothered to fix this oddity.