Tilda Swinton is an acting goddess. She commands "A Bigger Splash" with grace and ease, charisma and eloquence. Her eloquence here is almost all physical; her rock-star character is recovering from vocal cord surgery and, on the rare occasions she talks at all, it's in a soft rasp. Her face, though, speaks volumes. Swinton's Marianne is enjoying a vacation with her low-key boyfriend (Matthias Schoenarts) when her ex-love and ex-manager, an entertainingly manic Harry (Ralph Fiennes, enjoying the hell out of the role), turns up. With him is his newly found grown daughter (Dakota Johnson). The characters fall into a flurry of sexual temptations. Based on the 1969 film "La Piscine," "Splash" feels over-the-top and even silly at times, but the actors give it great heart.