Imagine the cheapest Hollywood film remade by a Bollywood street auteur with a will of iron featuring actors literally grabbed off the street. Welcome to the Nigerian film industry.
My mum loves watching these films. There's a premium channel on Sky that shows them. The majority involve love triangles, witchcraft or love triangle with witches performing their craft. One film I saw when I was about 10 involved a gigantic mecha-tortoise invoked by a witch to destroy her rival for some guy's affections.
Here is a youtube about Nollywood films: http://www.youtube.com/watch?v=qpPXgStqjfs