A cult is a largely unrecognized religious organization whose practices involve elaborate rituals and invocations to more powerful ethereal beings. Many cult practices are sinister in nature, and some are outright outlawed. Those who join a cult are referred to as Cultists. Denominations of some legitimate religions are sometimes perceived as being cult-like, particularly Western society's attitudes towards the Voodoo religion. The term has also been used to describe the popularity of obscure or low-budget horror films. Underground films that have generated a select fan base are said to have a "Cult following".