YMMV / 47 Meters Down

• Awesome Music:
  • "Ascent" by Tomandandy.
  • "Down in the Woods" by Richard Hawley.
• Narm: In the sequel, Sasha flipping the bird (one of the most commonly used insults) to school bully Catherine is treated as a huge "Gotcha!" moment, showing the latter's completely shocked face and the soundtrack swelling. It's so ridiculously over the top it's more funny than awesome.
  • Also in the sequel: a screeching jump scare fish.
• Nightmare Fuel:
  • The very concept of the film - being trapped on the seabed, with limited oxygen and no weapons or tools, poor communication with the surface and surrounded by great white sharks...which you can't always even see due to the lack of light.
  • The part where Lisa hears her critically injured sister trying to communicate with her over radio after being dragged away by a shark. Kate is badly wounded, alone in the dark ocean and surrounded by sharks being attracted by her blood, and Lisa has no idea where to find her or how to get her to safety. It's also unclear if Lisa actually heard Kate, or if it was a hallucination. If it was the former, it means that Kate was still alive and stuck somewhere underwater for some time, completely alone, before either succumbing to her wounds or being finished off by a shark, trying desperately to communicate with her sister.
    • If this was the case, it also means that as far as Kate knows, Lisa is still trapped at the bottom of the sea, running out of oxygen, with help still far away. She may have died thinking her sister was doomed as well.
  • The sequel features the new characters being trapped in underwater ruins with incredibly sickly and creepy looking blind albino great white sharks that stalk them throughout the majority of the runtime. Then at the end, the two remaining leads have to deal with normal great whites when they escape the ruins and find themselves in the middle of a shark watching boat trip with chum in the water.
  • The sequel also features a terrifying sequence involving a violent current. One character, Alexa, manages to make it to the cave to avoid the current, only for a shark to grab her from behind and drag her back. Alexa manages to get loose and tries to swim out, but drowns due to losing her oxygen.
  • Also in the sequel, in the most legitimately creepy moment of the movie, one of Mia's dad's divers, Carl finds himself alone in a section of the ruins, finding a boombox playing music. He hears chains rattling nearby and turns his light to see nothing. Then we see the shark slowly show up behind him, opening its mouth when he turns around, too late to stop what's coming next. Not much later Mia finds herself in the same section and finds his severed head.
• Tainted by the Preview: A humorous example involving shared names. It's usual for Spaniard audiences to believe mistakenly that the Santiago Segura billed in this film's credits (a Colombian-American actor known for his work in Scream: The TV Series) is the popular Spanish actor and Guillermo del Toro's usual collaborator Santiago Segura, only to get disappointed because he is not. Virtually all the Spanish film rating sites have people coming to ask why they didn't spot Segura in the film or what role was he supposed to play.
• Tearjerker: Lisa realising that her sister is dead.
• They Copied It, So It Sucks!: The Plot Twist of Kate's return being a hallucination has been unfavourably compared by some to Stone's vision of Kowalski from Gravity.
• The Woobie: Lisa. She has recently been dumped by her boyfriend for being "boring" and is persuaded to go cage diving with her sister to cheer her up... only for it to go horribly wrong. She is stalked by sharks, sees a man killed by sharks and her sister attacked and dragged away by a shark right in front of her, thinks she rescued her sister and got them both back to surface... only to learn she's actually been hallucinating the whole time. The films ends with her sobbing and desperately calling out for Kate, apparently realising she is almost certainly dead.

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