It seems that directors are largely against the idea of actors carrying umbrellas during rainstorm scenes. The reasons seem simple enough. It’s bothersome to frame an actor carrying an umbrella as the camera would have to shoot up from a slightly lower angle, and it’s difficult to light an actor carrying an umbrella without an artificial-looking glow. It strongly argues with reality, but that’s pretty much the Hollywood rule — no umbrellas unless it’s Alfred Hitchcock shooting the Amsterdam assassination scene in Foreign Correspondent. Carey Mulligan gets throughly soaked as she walks in the rain in An Education, but nobody is indifferent to this in real life. If I don’t have an umbrella I pull my jacket over my head or I cover my head with a newspaper, and I crouch down and run.