It's in Skyscraper—the latest in a streak of big-budget high-concept Dwayne Johnson blockbusters—that he finally claims Arnold Schwarzenegger's mantle. Not in terms of body count or catch phrases, which are relics of another era. (Sorry, The Expendables.) What Skyscraper represents is an absurd action movie that simply couldn't justify it's existence without Johnson's presence. He's an enormous charisma engine; drop him into a shiny plastic shell, and suddenly you've got a vehicle. by Ben Coleman