Here's how to make movies seem more and more and more fun (if a little bit blurred too) as you're watching them. Pick a film, follow the rules and become very merry. Have a swig every time shaky cam is used it 28 Days Later. Take a tipple every time someone says, "Mr President" in Independence Day, but avoid having a drink every time Bella sighs, "Edward" in the Twilight movies - not because your liver will revolt, but because you'll have to watch the Twilight films.
25. Anchorman (2004)
The movie: Will Ferrell stars as the titular news broadcaster, who gets lumbered with a female co-host in the shapely form of Christina Applegate's Veronica Corningstone.
Drink when: Ron addresses San Diego. Ron attempts to seduce a lady. Brick Tamland says something stupid. An Apatow favourite makes a cameo.
24. 28 Days Later (2002)
The movie: Cillian Murphy wakes up to discover the world has changed quite a bit, as rage-infected people try to eat each other.
Drink when: You have no idea what's going on. Shaky cam is being used. An infected person gets killed. Somebody gets bitten.
23. Zombieland (2009)
The movie: This horror comedy is set in a post-apocalyptic world where Jesse Eisenberg's survivor uses certain rules to stay alive.
Drink when: A rule comes up on screen. Somebody uses a place as a character name. Twinkies are talked about. Tallahassee kills a zombie.
22. Top Gun (1986)
The movie: Action classic starring Tom Cruise as a rebellious fighter pilot. Wonderfully gay.
Drink when: There's a homoerotic look shared between characters. Characters high five. Maverick goes against the rules. Danger Zone plays.
21. Scream (1996)
The movie: The best slasher flick of the '90s, starring Neve Campbell as the target of a movie-loving psychopath.
Drink when: Someone references another horror movie. A phone rings. Gale Weathers makes a bitchy remark to her cameraman. Ghostface appears. Somebody screams.
20. The Hangover (2009)
The movie: Brad Cooper and co. wake up in Vegas after a stag party, but can't remember anything about the previous night.
Drink when: Stu touches his missing tooth or mentions it. Someone says remember. You see a Vegas landmark. Alan copies Phil.
19. Independence Day (1996)
The movie: Roland Emmerich sets aliens loose on the Earth. Famous landmarks get destroyed.
Drink when: Anybody says 'Mr. President'. Apple Macs are shown. Jeff Goldblum awkwardly pauses. Will Smith cracks a one-liner.
18. A Nightmare on Elm Street (1984)
The movie: Freddy Krueger haunts the dreams of the Elm Street children, whose parents fried him to death when they were youngsters.
Drink when: You're not sure if somebody is awake or dreaming. Freddy Krueger's on screen. You see Nancy's house from the outside. Horror legend John Saxon appears.
17. American Pie (1999)
The movie: Teen comedy starring Jason Biggs as one of a high school fivesome who are all attempting to lose their virginity before college.
Drink when: Somebody mentions a party. Jim has an awkward encounter with his dad. Sex is mentioned. Stifler swears.
16. Gremlins (1984)
The movie: A small American town is overrun with horrible little beasties who make Christmas into a nightmare. Before and after.
Drink when: A gremlin is killed. Gizmo does something cute. Gizmo's tortured. The gremlins do something crazy (stairlift!).