The original 1979 large scale production (which was spectacular on every level, including orchestra, star power and set size) only recouped 50%, and the 2005 revival probably recouped in record time only because of the small scale production and the actors as orchestra.
Both of which were produced prior to the film release, which brought the material out into the attention of a larger general public.
It is impossible to sell murder, cannibalism and lust to school groups, tourists, and ladies group sales.
Nah. Cast Hugh Jackman as Sweeney and start counting the dough.
"What can you expect from a bunch of seitan worshippers?" - Reginald Tresilian