“Spring Breakers” isn’t a movie; it’s a colorful mind-numbing experience. Director Harmony Korine (“Kids”, “Trash Humpers”) brings audiences into his depraved re-imagination of St. Petersburg for the next 90 minutes. After a lengthy opening party montage set to Skrillex’s “Scary Monsters and Nice Sprites”, the movie cuts to stars Selena Gomez (“Hotel Transylvania”), Vanessa Hudgens