directed by Christoph Waltz
In both of the previous movies (Django Unchained, Inglorious Basterds) in which I've seen Waltz, he has played a garrulous grammar pedant and bon vivant who is far more dangerous than most of his antagonists or even the audience first realize.
In this movie, his directorial debut, Waltz again inhabits that sort of character. The difference with this film is that because it's based on a true story that yet feels stereotypical, it's very obvious from the beginning that Waltz's character has something up his sleeve. There aren't too many surprises for the viewer here. I suppose what there is though, is a sense of frustration and wonder that conmen can so easily prey on the elderly, the lonely, the greedy, the naive, the desperate, or the ambitious.
There also might be some resignation that age and resulting physical weakness will eventually impact us all, if we are lucky.
I liked Waltz's interpretation of his character, who like some demonic/devilish creations described in a Dungeons and Dragons Monster Manual, expends a tremendous amount of energy trying to be attractive to whomever he's interacting with at any given time. From time to time the mask slips and the true nature is revealed. Sometimes this is played for laughs, but usually it's not so amusing.