Alexandre O. Philippe has made films about Lynch, Hitchcock or William Friedkin. But there’s one that got away. At least for now.   “Nicolas Roeg. He holds more mysteries to me than any other director,” he says. Roeg, who passed away in 2018, is best known for “Don’t Look Now” and “Walkabout.” “I feel like I haven’t spent the time with his films that I need to spend, and I keep wanting to go back and understand how he worked. There’s one film in particular that dabbles in a really strange kind