Das Cabinet Des Dr. Caligari 4K UHD (Masters Of Cinema)

[Mr. Thomsen]

If one can read German, I can really recommend getting the book Das Caligari Complex by Olaf Brill. It is perhaps the best book published on Caligari since the surviving (but incomplete) script was published back in the 1990s.

Olaf Brill takes a look upon everything that has been written about the film, from contemporary sources to later interviews with key players, and he weighs in on many of the myths surrounding Caligari, disproving several.

It is not hard to read. I haven't read German in 30 years or so, and I still managed to understand it just fine.