Yeah, a lot of it's older but it's a huge high-quality film back catalog which Amazon doesn't really have today.

I found Amazon Prime movie section (good movies) better than Netflix.

This buyout makes sence.

Personally, I find the all-you-can-eat subscription subs all pretty bad for film. They have even good films but if you want to watch a specific film, it's unlikely they have it. Earlier in the pandemic I even reupped my Netflix DVD rental service for a while. (Sadly, Netflix is obviously not repurchasing a lot of older movies as the discs become unwatchable.)

A better list ranked by relevancy: https://www.the-numbers.com/box-office-records/worldwide/all...

Note that due to various deals back in the 80's, MGM doesn't own most of its older films, Warner Bros does. They do have the entire United Artists catalogue, and films from some other smaller studios like Orion pictures.