This script will select a random movie from your Netflix list and play it

netflix-random.js

// Navigate to your "My List" page before running this in your web console

// Get a list of all titles
var movies = document.querySelectorAll(".slider-item");

// pick a random number between 0 and length
var random = Math.floor(Math.random() * movies.length);

// this is our movie
var movie = movies[random];

// we need to trigger three clicks, each one will make the next possible (due to dynamic rendering)
movie.click();
movie.querySelector(".video-artwork").click();
movie.querySelector(".play").click();