There’s a good reason that Sex and Zen (1991) spawned several sequels, countless imitations and even a recent 3-D incarnation: it’s a great film. It’s funny and nicely shot, it sports a solid cast (which includes Amy Yip’s elusive side-boobs), and, most importantly, its main plot revolves around a small-dicked character who has his penis replaced with a horse’s cock. Here is my favourite moment from the climactic human-penis-to-horse-penis operation: