Russell, you can find 100s of screenplays online for free at sites like this: https://www.scriptslug.com/. Technically, those are illegal because they infringe on the "author" (studio, prod co) and their ownership rights. But nobody seems to pay much attention to that nowadays. If you want to go the legal route, my site has 100s of links made available by studios: https://gointothestory.blcklst.com/script-download-links-9313356d361c.