M the under-acknowledge film everyone should know

This is my favorite film I am not sure if it will be your favorite film but it pretty dam respectable. M is by fritz Long and though Metropolises is a much more household name I would argue this is an more coherent, better acted, better shot, and more entertaining film. Many people remark on Citizen Kane cinematography and though Citizen Kane does have a beautiful flow I would say M uses just as innovated techniques that maybe don't embrace film but are series of stunning images.

I am a movie watcher who wants to be entertain. Movies like A woman is a woman, space odyssey 2001, easy rider are all great films it is hard to place them in my top 25 because they are not as entertaining as films almost as interesting or innovative. M is about the first serial killer in Germany and is considered a big influence to noir.

specially good if you like themes like Lolita, the mystery of Rampo, any other dark pieces.