Resting is deadly, and friendship eternal, in Stephen King’s newest adaptation, “The Long Walk”

Fifty young men. One, long, long road. Every time one’s speed dips below three miles per hour, they’re issued a warning. Three warnings, and a person gets a ticket. In the end, only one remains. The Major (Mark Hamill), a grizzled army man who heads the Long Walk, tells the contestants as much in the opening minutes of the movie.