All I've got is this

(There is a discrepancy with 2 and 4 people are arguing about whether it has a right placement or not)
Rule 1: Cardio
Rule 2: Beware of Bathrooms
Rule 3: Seatbelts
Rule 4: Doubletap
Rule 6: Cast Iron Skillet
Rule 12: Bounty Paper Towels
Rule 14: Limber up
Rule 15: Bowling Ball
Rule 17: Don't Be a Hero....
Rule 29: Buddy system
Rule 31: Check the backseat
Rule 32:? Enjoy the Little Things
( I don't know but it says - Rule 33: Swiss Army knife)

Hey has anyone heard of google? Or wiki?  Sec.

http://en.wikipedia.org/wiki/Zombieland#The_rules

For those that dont click links.

The rules
A running gag, and a central plot theme throughout the film, is the list of rules Columbus comes up with for surviving in the zombie-infested world. By the end of the film, his list has thirty-three rules; only some of them are mentioned. A series of promotional videos starring Woody Harrelson and Jesse Eisenberg expanded on the list presented in the movie.[citation needed][5] In pre-release trailers for the film, some of the rules were presented in a different order, and some rules were named differently.
"Cardio"[6]
"Double tap"[6][7]
"Beware of bathrooms"[6][8]
"Wear seatbelts"[6]
"Cast iron skillet"
"Travel light"
"Bounty paper towels"
"Bowling Ball"
"(Don't) be a hero"[9]
"Limber up"
"When in doubt, know your way out"
"The buddy system"
"Check the back seat"[10]
"Enjoy the little things"[11]
"Swiss army knife"
At the end of the film, Columbus makes a few parting words reminding viewers of the rules and adding that "a little sunscreen never hurt anybody".

I think they missed when he changed the rule to (Be a hero) Unless thats what the parenthesis were ment to convey.