Why the ‘Mummy’ reboot unraveled in the U.S. and what it means for Universal’s monster plans

Universal Pictures built its legacy with horror movies featuring Dracula, Frankenstein and the Wolf Man during the heydays of Boris Karloff and Bela Lugosi in the 1930s and ’40s. More recently, the studio has made a well-publicized bet that it can create a series of successful films by bringing those creatures back from the dead. But…