This looks very fishy to me. The publishing CERES Institute is just three people who are not associated with any major research institution (and two of them appear to be father and son). In their About section, they state:
"In recent years, the scientific community appears to have prioritized defining a 'scientific consensus' [...]. We believe this obsession with 'forming a consensus' contradicts the ethos of true scientific inquiry and open-ended scientific research."
So, to me, this looks less like a real scientific study but like some people who just want to prove climate science wrong.
And, yes, like @rini17 writes: We do track temperature with satellites mostly. And not just since yesterday.
MDPI is also not exactly a reputable publisher, I wouldn't assign much value to "peer-reviewed" in this case. Not that it's entirely reliable for reputable journals either, but this looks like the kind of journal you'd choose if you don't want too much scrutiny in peer review.
We use Whereby for quite a while, and it works very well. It runs in the browser and does not require any installation (I think they are based on Jitsi).
Why is it even necessary to show a political map in this movie? I haven't seen it, but I doubt that territorial claims by China are part of the story...
I think self-censorship is fairly well documented when it comes to Hollywood and the PRC at this point, but do you have something to back up that demanding “gestures” such as this are commonplace? If so, it is news to me at least and I would like to read more about it.
There was a great book, Red Carpet: Hollywood, China, and the Global Battle for Cultural Supremacy, that had both examples and which talked about how the idea that Hollywood is kowtowing to Beijing is coming to an end... not so much because of Hollywood, but because China has been working hard to build up their film industry to a point that they have regular domestic features and don't have to depend on foreign films. So while some studios still likely self-censor in an effort to get China distribution, as that avenue is increasingly closed off regardless of the film content, that self-censorship may go away.
And those who don't have their careers destroyed - how often do you see actors talk about the plight of Tibet after Richard Gere was basically run out of Hollywood?