Brewster's Millions is an amazing movie. A true blast from the past. I wish more people in the USA and other countries with established political parties would at least take a look at the alternatives.
On your Bernie note though, I don't think the political machine will allow him to get to the general election the same way they stopped him in 2016. He isn't part of the political machine and I believe that even though Bernie is a more exciting candidate, that Joe Biden is the embodiment of the political machine and it was determined long ago that he will be the candidate. I hope I am wrong.
Anyway, as a long-term independent, it would be nice if the people would notice that the two-party system doesn't and hasn't worked for a long time. Bernie is no Democrat, but he has to have the (D) next to his name or he probably wouldn't even get noticed.
I remember how hard Ross Perot had to work in order to get noticed, including spending a ton of his own money in the process. Shame the reform party fell apart shortly after his departure.