I haven't seen this film, but it is doing well at the box office.
Have any of you seen it?
Reports I have read say that:
it is about the mythology of the blues, with hoodoo and the devil.
There are vampires.
The blues is performed sung with solo guitar.
And at the end of the film there is a cameo appearance
by none other than Buddy Guy,
sitting at a crossroads after dark playing the guitar.

I don't know if I'm brave enough to watch.
But it sounds fascinating.