It’s not so often that the font of a movie’s opening credits is, itself, a provocation. But in Luca Guadagnino ’s muddled but darkly absorbing “After the Hunt,” the white Windsor Light Condensed lettering against a black background, with cast in alphabetical order and soft jazz playing, is immediately recognizable as the style of a Woody Allen movie opening. In the juggling act to follow in “After the Hunt,” where Guadagnino will playfully twirl a twisting narrative of alleged sexual assault,