Difference in this version to the '54 original version

Discuss Godzilla, King of the Monsters!

The complete absence of reporter Steve Martin in the '54 version.
Godzilla has a different and harsher sounding roar in earlier version(why?).
Emiko originally very much begged Serizawa his forgiveness and not to reject her into horrible shame when the young, fine lady broke her vow and she told someone else about his formula that could rob water of all oxygen and turn lifeforms in that water to skeletons. Not as much in the later version did she do this (as far as I remember).
I think there was an army guy (or someone like that) following Steve Martin around in the '56 version. I believe he too was all missing from the earlier version.
5. There was a bit in the '56 film when Emiko appears to be quietly looking right at Steve. I could not quite find this shot of her in the '54 film. Was it an outtake shot of the comely actress?

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