According to Guardian Unlimited, the film is titled Little Ashes, named for one of Dalí's paintings, and it isn't exactly based on any definite evidence. In fact, Dalí reportedly acknowledged being the object of Lorca's homosexual affection multiple times, but denied they ever became physical and insisted that he continually rejected the poet. However, the film's screenwriter, Philippa Goslett, stands by her depiction of the events. She claims to have done enough research to believe that the men consummated in some way. The way the script apparently shows it, as far as Guardian Unlimited relays it, is Dalí wants to have sex with Lorca but can't and then ends up merely acting as a voyeur, watching while Lorca sleeps with a woman.
Little Ashes is apparently done shooting, having been filmed primarily in Barcelona on a low budget of £1.4 million (roughly $2.9 million -- I think). Paul Morrison (Solomon and Gaenor) directed the film, with Robert Pattinson, best known as "Cedric Diggory" in the Harry Potter movies, playing Dalí. Spanish newcomer Javier Beltran is Lorca and Matthew McNulty (Control) portrays a young Luis Buñuel. On a related yet personal note, I must address to all my friends that this news will have no impact on my long-decided plan to go as Dalí for Halloween this year (I'm broke, and it's cheap -- you only need a long mustache and a suit!).