A few hours ago an attorney friend caught a 10 am showing of Once Upon A Time in Hollywood. He texted me an hour ago: “I liked it. Almost saw it twice.” Yesterday a name-brand post-production guy saw it and wrote that he “loved it!” And yet it has a B grade on Cinemascore. Thw downvoters are almost certainly your Millennial and GenZ ticket buyers. Half of them don’t know the 10050 Cielo Drive murder saga so the ending doesn’t work for them. Case in point: Those 20something women who were sitting next to me last night and talking on and off, apparently out of boredom. OUATIH is mainly for 40-plus viewers.