You should watch M. It invented the serial killer horror film. And while American studios were making their first sound films (with horrible horrible sound quality, bad editing where the camera couldn't cut for a whole conversation for fear of cutting off some of the bad dialogue, and over-the-top live orchestras in almost every scene), Fritz Lang nailed it. It probably has the best sound editing (and visual editing in regards to pacing with the sound itself) for all of the 30s and 40s. And it did wonders with parallel montage editing, and the brilliant performance by Peter Lorre that jumpstarted his career.
I've watched it in a couple different film classes, and every time there's 1 or 2 kids whose minds get blown so hard they go tell the professor it's the greatest film they've ever seen. So I'd say the magic has lasted over 70 years.












