La Montaña Rusa is a 2012 Spanish erotic romantic comedy directed by Emilio Martínez Lázaro in which three childhood friends — a woman and two men — reunite years later, only to find that their old feelings and unresolved tensions have followed them into adulthood. The woman finds herself caught in a messy love triangle between the two men, with one representing raw physical desire and the other offering genuine emotional love — leaving her torn between passion and commitment in a story that is equal parts funny, sexy, and painfully relatable.