Clint Eastwood and Kevin Costner have done their share to resurrect the Western genre. TOMBSTONE (Hollywood Pictures) is a highly watchable entry, commercial enough to lasso contemporary audiences. It is excessively violent, but the updating for younger viewers is fairly palatable. Youngish Kurt Russell and Val Kilmer are okay, but lack the forceful impact of a Henry Fonda or a Victor Mature as Wyatt Earp and Doc Holliday. Also horsing around are Billy Zane, Michael Biehn, Jason Priestly, Powers Boothe and Sam Elliot. Charlton Heston, always at home on the range, makes a quickie cameo appearance. Dana Delaney plays a traveling actress who has a fling with the lawman. Dana Wheeler-Nicholson plays Wyatt's second wife, who had a serious drug problem. No wonder. You can imagine the emotional stress of being called "Mrs. Earp" all day long. The TOMBSTONE director is George Cosmatos, responsible for RAMBO II and COBRA, so don't go to TOMBSTONE expecting anything subtle. He keeps t!
             he action moving at a rapid pace, never living down to one of his nicknames, "George Comatose."
             ------------------------------------------------------------------------
             ...