@bradenslen Good call Brad! I'm a major fan of Weimar era cinema, Weill, and Brecht. Die Dreigroschenoper is one of my favorite films and I've got half a dozen drafts of screenplays of a modernized retelling which heavily features Mackie Messer. One day, it'll be more than just a collection hopefully.
@c I don't think I ever saw that film. I'll have to hunt it down. I wish you luck with your screenplay!
As for the song the first version I ever heard was Bobby Darin's which is great. Decades later I chanced to hear Louis Armstrong's version which is brilliant. I love both versions and rotate between the two. It's hard to believe such a gruesome song can be so cool.