Just having funny and tragic elements in a movie doesn't make it dark comedy; that takes a careful and very talented touch. Think Death to Smoochy, Harold and Maude, or Mel Brooks' To Be or Not To Be. But Beatriz at Dinner is just an admixture of the extremes that beats you upside the head. You can't be sure what you're getting hit with, and the elements don't make a greater whole. The premise is a class contrast. Hayek's healer/masseuse is befriended and employed by a couple whose child she helped through the post-chemo misery of Hodgkin's cancer treatment. Her car breaks down at their wealthy-enclave home, and they invite her to stay for an important dinner with their super-wealthy patron. Hilarity and tragedy ensue. Weird moment that may demonstrate my point: Beatriz is portrayed both as a deep, sensitive and capable healer, and as an airhead. Someone at the dinner table describes a painful kidney stone incident, and, trying to contribute from her field of expertise, she chimes in with a holistic-sounding remedy, a tea made from beets, rhubarb, and dandelion flower. Those are on the rogue's list for kidney stone sufferers: they're among the six things that generate kidney stones at a rate 10 times more intense than the second tier of danger. So it could be an obscure inside joke, horrible research, or a loop they intended to close later but left on the cutting room floor.