While it's not in his biography Atchinson's role in the attack on Lawrence KS is in the Wikipedia article "Sacking of Lawrence".
https://en.wikipedia.org/wi…

No, for major studio productions 1980 is about right. The Steadicam (I spelled it wrong earlier) was invented in the mid-1970s but only hit the mainstream in 1980. One of the best uses of Steadicam was by the late John G. Avildsen: the montage in "Rocky" (1976)

There's actually a much simpler explanation. Steadycams started becoming widely available in 1980 - they added these scenes because they could. It was the 1980's version of CGI.

"throughout Rickles’ TK-year career"

Any word if they will include the finger puppets which were included with the original vinyl album?

These two are far too talented to be stuck in a reheated remake of "Overboard" (which was a pastiche of similar films of the 1930's). They'd be better off doing a Derbez original script with a young director with a sense of timing.

"David Birke’s fluid screenplay, which was written in English and subsequently translated into French…"

That last line should read: "Donald Trump may be making America look bad, but Billy Bush is losing NBC money."

How could you leave out the pinnacle of his effect on American Pop Culture: "Rescue from Gilligan's Island"?

No Bob no peace!

Sorry lads but remember all that cash, studio time and publicity Hellcat Records gave you? That was in exchange for the ability for others to do what they want with your music. That's why it's called "selling out".

I will only say that, were I your editor, I would have put a red line through all the "weasel words" in the first paragraph.