Favourite low budget movie

What's your favourite low budget movie (I'd probably consider low budget as anything from a few k to 1 mil?)

http://www.imdb.com/list/ls055140840/ lists the most popular 100 films under £1m
http://list25.com/25-low-budget-movi...ere-huge-hits/ lists a few
http://www.denofgeek.com/movies/1868...-budget-movies lists another few (although this includes up to 10mil)

I'd probably say Clerks, think it was $27k

came to say clerks as well, great movie

but looking at that imdb list i didn't know a lot of them had that low of a budget

Halloween

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