Legitimate, free, VOD, studio movies?

Not sure if this topic has been covered elsewhere. Searched & couldn't find it. But I've been looking for ad supported movies online. I won't mention any sites unless I'm confident that they're legit. One tell is if they have a major corporate tie-in.

For example, Crackle is Sony's site.

IMDB Freedive is Amazon's site.

Vudu is Walmart's site. Most of it is PPV but they have a large free section.

Yidio is an agregtor website which points you to movies available on the platforms above.

Viki is Rakuten's site. Mostly live action, east Asian content. Cool part is it features a "learn mode" for English speakers:

https://support.viki.com/hc/en-us/articles/231829048-How-to-use-Learn-Mode-

Shout Factory TV shows a lot of older stuff. Their primary business is repackaging older content on hard media & selling it in brick & mortar stores. So they're legit.

Tubi TV doesn't have any obvious corporate links. But here's an article on Tech Crunch documenting their busienss model:

https://techcrunch.com/2015/11/19/tubi-tv-grabs-6-million-from-mgm-lionsgate-and-others-for-its-free-ad-supported-streaming-service/

Have also found a ton of classic movie sites. I think they're legit because the movies are old enough to be public domain & likely can't be stolen. But I'm not quite sure.