The first time I saw Braindead was actually in a cinema. I basically laughed my head off from the beginning, all the way through the movie, and well over half an hour after. My friend was really quite pissed off because there were a lot of people (mainly girls) in the theater who were quite horrified and they just kept giving us (me) strange looks because I thought the movie was so funny while they obviously did not. The lawn mover scene nearly made me choke, and I actually had pain in my stomach after the movie. Great classic movie :)
Bad Taste is also a true classic, although not as hilarious as Braindead.
i saw braindead first in cinema as well, going with my bf at that time
i had my regular ice cream (5 mega balls of chocolate häagen dazs with extra choc sauce and extra choc topping ... this monster costing twice the price of the movie ticket itself)
after going to the bathroom a good while into the movie he told me some guy was throwing up from it, which i couldnt understand at all and happily continued eating my ice cream