The US theatrical cut of “Yellow Submarine” has not been released in a digital format. It appears on VHS and LD only.
I think this says the Theatrical Cut was released on a German DVD.
No, that is just the same version released everywhere since 1999. It matches the UK version of the film as it premiered. Upon international release, the film was shortened, with some alternate footage during the final battle. That was the widely available version of the film before the 1999 restoration released on dvd at the time.
The entry for Yellow Submarine is not exactly accurate. The theatrical version featured a short excerpt from the song “Baby You’re a Rich Man” and a battle with Blue Meanies, whereus the DVD version features an entire song “Hey Bulldog” which is missing from the theatrical version.