Haha, list of spoilers from various movies, TV shows, books, etc. Via Wired 15.03: Snack Attack!.

# Vader is Luke’s dad — The Empire Strikes Back
# Rosebud was his sled — Citizen Kane
# She’s her sister and her daughter — Chinatown
# Norman is the killer (in drag) — Psycho
# Verbal is Keyser Sze — The Usual Suspects
# Doc is dead — The Sixth Sense
# Earth, in the future — Planet of the Apes
# Dog gets put down — Old Yeller
# Soylent Green is people! — Soylent Green
# He dumps her — Gone With the Wind
# Life is a simulation (whoa) — The Matrix
# Husband is in on it — Rosemary’s Baby
# She is a he — The Crying Game
# Dave disconnects HAL — 2001: A Space Odyssey
# Split personality — Fight Club
# Citizens paint town red — High Plains Drifter
# Wife’s head in box — Se7en
# Maggie shot Mr. Burns — The Simpsons
# Mistress shot J. R. — Dallas
# Laura Palmer’s father did it — Twin Peaks
# Double suicide — Romeo and Juliet
# 42 — The Hitchhiker’s Guide to the Galaxy
# Boys are rescued — Lord of the Flies
# Whale destroys boat, lives — Moby-Dick
# Shark destroys boat, killed — Jaws
# He buries himself — The Hunchback of Notre-Dame
# Gatsby is murdered — The Great Gatsby
# A-P-P-L-E — The Da Vinci Code
# John commits suicide — Brave New World
# Burned books are memorized — Fahrenheit 451
# Mark Felt is Deep Throat — Watergate
# Greek soldiers in horse — The Trojan War
# Samus Aran is a woman — Metroid
# Prisoner is saved — The Pit and the Pendulum
# She’s an actress — Lonelygirl15
# They’re all in on it — Murder on the Orient Express
# There is no Santa — Christmas