This document contains 4 ideas for opening sequences for a thriller film. The 1st idea involves 2 couples entering a ferris wheel cabin, where an assassin kills the other two due to a mafia disagreement. The 2nd idea involves 5 people trapped in a room where each is secretly told there is a bomb. The 3rd idea features a psychopath alone in the woods yelling about a missing corpse that is then found. The 4th idea involves 2 killers leaving a suspicious bag in a taxi trunk after a crime, and the taxi driver blackmailing them about keeping the corpse. Each idea also provides a brief plot for the full thriller film.