Stephen Saito As an actress, writer and director, Alice Lowe has never much cared if you like the characters she’s penned for herself. From the tourist who develops a taste for murder on her road trip with her boyfriend in Ben Wheatley’s “Sightseers” to a mother-to-be whose baby inspires far more violence than just kicking around in her belly in her own directorial debut, “Prevenge,” Lowe has sacrificed audience approval for the license to explore darker corners of the female experience.