I have recently installed Cinema HD APK app on Firestick https://www.firestickhow.com/cinema-apk.html. It allows to watch free movies and shows, and I should say, I like it a lot! Speaking about finance movies, I watched Wall Street: Money Never Sleeps. There are several films about Wall Street, but this one with Shia LaBeouf and Michael Douglas in the main roles really impressed me.
It's a Wonderful Life has a very instructive scene with a run on the bank. It's often referenced in Financial and Economic classes.
Just finished spiderman: far from home and I love it. I am from Spain so I use Spanish IPTV playlist to watch the latest IPTV movies and tv shows on my android smart TV. You can do the same if you want to watch TV series on big screen