AT THE VERY outset is reality. Modern, 21st century reality. Unmoving cars, back-to-back, bumper-to-bumper, on a Los Angeles flyover, set to the cacophonous soundtrack of impatient yelling and noisy horns. If there is hell in LA, this must be it. An autogeddon. And then suddenly, amidst this urban chaos, one by one, agitated motorists emerge and break into a film tradition of old. They begin to dance to the beats of a superbly choreographed song.
The scene is the opening shot of La La Land, the hit Hollywood musical that has now been nominated for 14 Oscars, tying it with All About Eve (1950) and Titanic (1997) for the most nominations ever. At the awards night, it could possibly even accomplish a big sweep. This opening scene, a several-minutes-long sequence…