Martin Scorsese has come on board as executive producer of “Rain,” a drama starring Melora Walters (“Magnolia”) that will be financed by London-based LolaFilms U.K., the English-language production division of Spain’s LolaFilms, and helmed by writer-director Katherine Lindberg.Former Lynda Obst Prods. prexy Jordi Ros will produce the pic, in which Walters will portray a woman who kills her husband and has an affair with a young man who turns out to be the son she gave up for adoption. Lindberg was a Martin Scorsese fellow in the graduate program at New York U’s film school. After graduation, she continued to work on “Rain” with Scorsese, who was then based at Disney and funded the development through his Cappa Prods.’ discretionary fund. Ros, a former senior veep at Touchstone Pictures who served as Scorsese’s executive on “Kundun,” also worked with Scorsese and Lindberg to develop “Rain.” The Barcelona-born Ros also worked on the Lola-financed Touchstone production “Two Much,” which starred Melanie Griffith and Antonio Banderas. After Ros left Disney in July 1998, Scorsese asked him to continue working on the project. U.S. push Backed by giant Spanish telco Telefonica, Spanish movie mogul Andres Vicente Gomez launched LolaFilms U.K. in May 1999 to spearhead his company’s drive into English-language production. Lola hired Endeavor to jump-start its stateside push earlier this year. LolaFilms U.K. is also backing John Malkovich’s directing debut, “The Dancer Upstairs,” as well as the Hugh Laurie starrer “Girl From Rio,” Susan Seidelman’s “Gaudi Afternoon” starring Judy Davis and “Off Key,” an operatic send-up of the Three Tenors helmed by Manuel Gomez Pereira (“Entre la piernas”). Ros is also working with his Me We Prods. partner Hunter Richards on “The War,” a documentary about cancer. Walters recently wrapped a starring role in Canal Plus’ “Speaking of Sex,” which also stars Bill Murray, James Spader and Lara Flynn Boyle and was directed by John McNaughton. She also had a co-starring role in Paul Thomas Anderson’s “Boogie Nights.” Walters is repped by UTA and manager Mel McKeon at McKeon/Valleo Management.