Near the finale of It Follows (2014), when they try to trap It in a public swimming pool, they arranged various things beside the pool, like shown in this picture:
Why did they arrange those things in this way beside the pool?
‘It Follows’ Director Explains Unconventional Finale
Mitchell speaks to Vulture about the final sequence in which the kids surround a pool with electrical devices in hopes of electrocuting? the creature. It’s a really stupid plan, but Mitchell’s reasoning behind it is completely sound.
“It’s the stupidest plan ever! [Laughs.] It’s a kid-movie plan, it’s something that Scooby-Doo and the gang might think of, and that was sort of the point. What would you do if you were confronted by a monster and found yourself trapped within a nightmare? Ultimately, you have to resort to some way of fighting it that’s accessible to you in the physical world, and that’s not really going to cut it. We kind of avoid any kind of traditional setup for that sequence, because in more traditional horror films, there might be a clue that would lead them to figure out a way to destroy this monster. I intentionally avoided placing those. Instead, they do their best to accomplish something, and we witness its failure. It’s probably a very non-conventional way of approaching the third-act confrontation, but we thought it was a fun way to deal with it.