Pagan performance-studies scholar Jason Winslade is interviewed at the TheoFantastique blog on Witchcraft and the entertainment industry:

Let me first say that I have a hard time coming up with any examples of “real witchcraft” or “real magic” in television or films. As you rightly state in your blog, any portrayals of these phenomena are inevitably fantasy with fancy special effects and things flying around. Any practitioner will tell you that this does not happen. At least they do not in the waking world. (Of course, this begs the question what “real magic” actually is – ask 3 practitioners and you’ll get 5 answers. Certainly “real” magic, with the exception of ritual, is much more of an internal process, and thus doesn’t lend itself to special effects extravaganzas). Some programs may incorporate sound magickal philosophy and metaphysics but their application is ultimately fantastical.

TheoFantastique is written by John Morehead, who also writes Morehead’s Musings, where he has a special interest in Christian evangelism to new religious movements.