A Holiday Spectacular, the Radio City Rockettes’ Hallmark Channel movie debut, follows a late-1950s Philadelphia heiress who sneaks off to New York City so she can follow her dream of—what else?—performing with the iconic line.

On a humid summer day in midtown Manhattan, construction goes on outside the Church of St. Paul the Apostle. Inside, another type of building goes on: In separate basement studios, two groups of 40 dancers focus their attention on their instructors. It’s the Rockettes’ summer intensive, a rare chance for students to work with professional […]