So many predictions wrong even though it was only 14 years away

I think during WWII this guy made plans for a series of bigger and bigger rockets continued right from the V2 to send unmanned craft out exploring the Solar System, not a moon shot first thing or even ever if any such catering to fantasies of AstroMen.
There's a black and white Disney "biography" where they keep letting you know that Von Braun had a personality tic of making anti Nazi speeches to anyone in the room (sabotaging the V2 would have made him look too sneaky and complicated or something.) I should find that, it might be MNR material but I only remember it had nice sets with walls of 1950s electronics gear and some pointless love interest subplot.

A young Rodney Dangerfield would have done a good Wehrner Von Braun in movies.