While filming a funeral scene at Green-Wood Cemetery in Brooklyn, a heavy branch fell off a tree and hit a cop playing the bagpipes on the head. Ferrell rushed to his aid and helped keep the man calm before medics arrived, the New York Post reports.
"That's gotta hurt!" he jokingly told the officer.
Retired Detective Daniel Sprague, an 18-year veteran from Long Island, received four stitches at Lutheran Medical Center.