Okay, that explains it. I was astonished both by the events themselves, and by the visuals, not believing they'd actually DO that, and that Republic would sprig for the budget for it.
Someone else online said they were expecting a last-minute reprieve, and was shocked when they ACTUALLY had half of New York WIPED OUT. Whoa! And then, in the next scene, the Mayor is going on about how "his administration" saved the day, and they'll rebuild New York, as if nothing that bad happened. (In fact, Rocketman's appearance didn't make that much of a difference.)
I agree about the sequence of him coming in thru the wnidow. DAMN, this thing was exciting!
I'm mainly bothered by the extreme lack of common sense with regard to security on a high-profile research outfit doing work for the government where people are people bumped off one by one, vital inventions are being stolen, and they've got ONE Fed on the scene, and HE gets kidnapped in Chapter 10. By the time they'd narrowed down the suspects to only 2, I'd have thought the only sensible thing to do would be to have BOTH of them locked up until things were cleared up.
BATMAN (1943) had similar problems where the hero was very lax when ti came to keeping his identity a secret. Plus, there were so many times when the whole case could have been wrapped up much earlier than it was, but wasn't. (I love it anyway, and wish they'd done a sequel with the same cast.)
After this, it makes sense any sequel the stakes would have to be upped. It's so bizarre that they replaced the cast and re-named ALL the characters in the 2nd film, though the dilaogue makes it clear that it IS a sequel, even though the films acts like it isn't!
I'll be watching that next...