Santiago Requejo has not only turned his hit short, “All in Favor,” into a theatrical play set to premiere in Buenos Aires in April, he’s also working on a feature film version.The award-winning work, which was shortlisted for this year’s live-action short film Oscar, sets the scene with a friendly meeting of apartment owners discussing a new elevator that becomes increasingly tense when they find out one of the neighbors has rented his flat to a work colleague with mental health issues.