Quietly funny, subtly sad, structurally and formally audacious, soaked in soju and scenes of mortifying embarrassment—the name of South Korean auteur “Hong Sangsoo” suggests an extremely specific cinematic experience, one that more and more viewers are finding irresistibly addictive. (Luckily, Hong is also astonishingly prolific.) A collection of high points of Hong’s filmography, which specializes in characters who are found at their personal low points.