King of the Rocket Men was a Republic Movie serial that I used to watch when I was kid. All I really remember of it was that there were gangsters, an evil genius called Doctor Vulcan and a hero with an atomic powered rocket suit. I just loved watching King duke it out with trilby and pinstriped hoods. And every time King flew up a building they would kind of warp the perspective so the building looked really tall. The climax of the series saw Dr Vulcan using "The Decimator" to destroy Manhatten (the destruction of which used footage from the 1933 movie "Deluge"). What does a Decimator do? It decimates stuff!
So, the mad bad Doctor Vulcan gets to wreak havoc but ends up getting his backside handed to him on a plate by Jeff King (the titular King of the Rocket Men). What was amazing about King of the Rocket Men was that it really did look (for the time...and for young impressionable minds) like he could fly. I wanted that rocket suit so bad!
By the time Radar Men from the Moon (which you can buy on DVD) came around, Jeff King was gone and replaced by Commando Cody (Interesting to note, in Star Wars Ep 3: Revenge of the Sith, one of the clone trooper commanders is called Commander Cody). The exposition heavy dialogue is glorious. The plot is ludicrously fantastic, and while some of the acting may be wooden, it has a wonderful veneer.