Not really - I've got my films mixed up before. I was also unaware that it was released in the cinema in the U.K.
Sorry, I just struggle to see how anybody could say it was one of the worst films they have ever seen, unless they'd only seen a handful of movies or something. There are some dire, awful, shockingly bad low budget stinkers out there, with laughable acting, tragic video quality, and scripts that appear to be written by a 9 year old school boy with learning difficulties - Ginger Snaps is a pretty solid production, even if the concept or genre is not ones 'thing'.
I'd also say that it's better than half of these high budget 'blockbusters' that Hollywood churns out each year.