Through out the movie, the rastafarians are shown to be practicing voodoo.

Rastafarians do not practice voodoo, the true rastafarians faith is based in the worship of Jehovah, which is where the name Jah comes from. For those who do not know, Jehovah is the name of God.

Even those rastafarians who are not devoted to the faith do not practice voodoo.

Having lived my whole life in the Caribbean, I know this to be true.