Found this gem and thought you might like to see – it's a TV commercial made for the original 1979 production of Sweeney Todd, featuring its stars Len Cariou and Angela Lansbury. The advert was shot on the Uris stage (the largest on Broadway, since renamed the Gershwin), and you can see the immense factory structure with its large glass roof – the remnants of an actual iron foundry shipped in from Rhode Island! – that served as the setting.
Director, Camera: Fred Levinson
Copywriters: Laurie Birnbaum, Ruth Downing Karp
Art Directors: Paul Waxman, Paul Verliuzzo
Editor: Cal Shultz
Composer/Lyricist: Stephen Sondheim
Talent: Angela Lansbury, Len Cariou
Thanks to the Paley Center for credit information