From TARDIS Index File, the free Doctor Who reference.

Steinberger P. Green was a Hollywood film director. While directing a scene with Blossom Lefavre and Darcy Tranton, the filming was interrupted by the Doctor, Steven Taylor and Sara Kingdom, who thought the performance was real. Angered, Green ordered his camera crew to eject the travelers from the set, but Steven and Sara beat up their would-be attackers and escaped. Impressed, Green chased after them so he could hire them for his film. (DW: The Daleks' Master Plan)