The Apostle is a showcase movie for Robert Duvall, who gives a flawless, intense portrayal of a flawed tragic hero. It may be Duvall's best performance, and he makes this a movie worth seeing. The Apostle is not so notable for subplots or side characters or social commentary, but the film works as a character study of a charismatic preacher who dramatically falls from grace and tries to pull himself up again, and with Duvall it works remarkably well.