Okay, this film has already been so widely debated that I’m not sure what I can really add to the conversation. So, I’ll just give my thoughts.
“Joker” is a fairly basic character study of Arthur Fleck, a mentally ill man who feels increasingly marginalized by an uncaring and brutal society in Gotham City. To start, the characters, except for Arthur himself, are pretty flat. They seem to have little purpose other than to further Arthur’s story. This includes Thomas Wayne, who in other media is portrayed as a man of many dimensions, wealthy but caring, and instilling these values in his son Bruce. Here, he is portrayed as much more uncaring and elitist. Which gives much less of an impact in the inevitable alley scene we see in everything remotely related to Batman. More on this in a minute. It’s important to the point.
Arthur suffers a condition that makes him burst into laughter at inappropriate times. He also has other unspecified mental illnesses. We’re never given the specifics. This is actually a little troubling because of the general depiction of mental illness. It almost seems like they are saying that if someone is mentally ill then they are a ticking time bomb and it’s only a matter of time before they go off. This is not a good look.
After a series of events, Arthur begins spiraling downward, but at the same time realizes how much influence he can have over other people, an aspect of the Joker that isn’t often explored. And this is where the characters other than Arthur being rather flat comes into play.
There’s more than one indication that we are actually witnessing these events through Arthur’s eyes. And this creates a brilliant depiction of a narcissistic personality. The only character that gets fully fleshed out is Arthur himself, but he can’t or won’t connect with other people to see their depth. As such, we get to see narcissism from the inside, no connection to others and in fact seeing them as pawns in his own schemes. It’s subtle and definitely not in your face, but if you look carefully, the hints are there.
Those who fear that "Joker" would glorify incel violence or otherwise can rest a little easier, but as I mentioned, the film isn't without its troubling portrayals. It does vilify the mentally ill, which creates a whole host of other issues. The movie swings wildly between "excellent" and just "okay," and sometimes even "meh." As such, it gets a recommendation, but only a mild one.