Few directors have had careers as wildly uneven as John Boorman's. His work has ranged from that Ur-existential thriller "Point Blank" to "Hell in the Pacific" to "Deliverance," for which the state of Georgia tourism board is no doubt still grateful. Then came a 10-year period in which he made "Zardoz," "Exorcist II: The Heretic," "Excalibur" and the eco-fantasy "The Emerald Forest." Say of them what you will.