'Harry Potter's' Daniel Radcliffe in 'My Boy Jack'

As the star of the " Harry Potter" movies, Daniel Radcliffe has eluded supernatural danger and even near-death at the hands of Lord Voldemort and his minions, but the actor faces the very real horrors of World War I in "My Boy Jack," a wrenching "Masterpiece Theatre" drama premiering Sunday at 9 p.m. on WNET/13.

BY JOHN CROOK

April 20, 2008