Mark Hartley's remake of the Ozploitation classic remains faithful to the original in spirit, but makes some bold changesThe 1978 Ozploitation horror flick, Patrick, had an irresistible plot about a psychopathic but comatose patient who becomes obsessed with a pretty nurse and takes over a sinister hospital using telekinesis. It's not hard to see why it has come up for the remake treatment.Re-doing classic films is rarely a good idea – indeed it's often disastrous – but as Steven Soderbergh demonstrated with Ocean's Eleven, remaking flawed movies can be productive, especially when the source material is a neat concept that somehow failed in the translation.