At least judging from this somewhat lazily, if entertainingly, written production diary of the 1996 Pfeiffer-Redford sudser "Up Close & Personal," the late John Gregory Dunne had less in common with his wife, Joan Didion, than with his tediously self-promoting brother Dominick. Catty score-settling, name-dropping and inexcusable factual lapses (movie titles incorrectly recalled, productions attributed to the wrong studio) aside, and the lamentable absence of Didion's brand of stately dry-ice observation notwithstanding, Monster is a quick, acerbic industry survey. Readers seeking more substantive dream-factory insight would do well to read The Devil's Candy by Julie Salomon.