F*&% the Prom (2017)

F*&% the Prom is sort of like a slightly younger version of Mean Girls - about a group of high school seniors navigating the terrible ranks of popularity and getting revenge. Maddy (Danielle Campbell) and Cole were best friends in middle school, but she becomes extremely popular by their senior year and he's, well, not. When her best friend (Madelaine Petsch) gets caught with Maddy's boyfriend, Maddy is ejected from the popular crowd and she and Cole decide to destroy the senior prom. Part of that means sabotaging Madelaine's tanning session, meaning we see her strip down to her bikini!