Masterclass is really a scam in my opinion. Who needs them to teach about generic stuff, when what we need is how to be good like them, that’s why we pay for the course
And you probably don't have the chops to write screenplays like Aaron Sorkin and almost certainly won't develop them from a video.
This. Intro to X courses are better left to the manifold resources available on YouTube. Experts are for expert topics. As Liszt reportedly said when asked why he eventually accepted only advanced pupils: “Wash your dirty linen at home.”