1. A Blackerry.
I'm talking about the electronic device, not the fruit. You can take the fruit to the cinema, but it is less capable of storing text messages.
A blackberry is essential. No movie is complete without BBM'ing your friends, especially when they're in the seat next to you!
2. Candy/Sweet Wrappers
I use the American term 'candy' and the English term 'sweets' to make sure nobody misses out on this one.
Wrappers are an integral part of the cinema. The rustling of the wrapping, together with the tap-tap sound of your Blackberry, means you're arguably deserving of a 'Foley Artist' credit.
Please note: I am, once again, referring to the Blackberry device, and not the fruit, as the fruit rarely makes a tap tap noise, unless trying to grab the attention of a friend.
3. A Girlfriend With An Annoying Accent
Women are so beautiful and wonderful! Especially when they are sitting two rows in front, in the dark cinema, talking with a twang that is part Southern, part retard.
Rather than jealously watch the guy in front of you talking to her, bring your own. But you must be strict. Regardless of how pretty she is her voice must be of a particular style, tone and diction, which can at best be described as the sound of a parrot that has been brought back three months after its death, made to swap genders and then forced to give a lengthy speech about hairdressing.
4. A Pretentious Laugh
Be sure to bring it. Every now and again, you spot a joke in a movie that most people in the audience missed, apart from the one person who spotted it and laughed loudly so that everyone knew they got it.
The only people who do this are either 54 year old bald men, or pretentious 19 year old students called Yvonne. Find out which one you are most like, and dress accordingly. You can also practice your laugh before the film, by giggling condescendingly during the trailer for the new Nicholas Cage film.
5. Loud Shoes
Loud shoes are wonderful, and they come in all sizes!
With these you can tap along to the musical score, you can kick the seat in front in a subtle, unobtrusive manner (when I say subtle and unobtrusive, I mean in a way similar to a small elephant jumping on your head whilst yelling in German).
The shoes are great for walking, for pushing the entire row of seats in front of you, and for running away should a member of the public want to kill you (cinemagoers just don't appreciate loud shoes these days, you can't be too careful).