Trying to remember this film. I`m not sure If It`s Spanish, or a U.S remake of a Spanish film.
It`s set at a wedding, a couple has just got married, then one of the guests becomes "ill" but then kills someone, & the killings continue, with most of the people present getting murdered. I`m not sure If they turn Into Zombies, or If they become Infected with some kind of rage.
It may even be shot In a found footage kind of style. There may have been a sequel as well.
I`m thinking 1990 onwards.
Huge thanks In advance!