vgl. IMDb.com: “This film, the first Warner Bros. feature to utilize the Vitaphone process, debuted in a gala premiere on August 6th 1926 and while it was a hit, it signaled an industry format war unrivaled until the 1980s Beta vs. VHS battle. Warner's Der Jazzsinger (1927) would become a monster hit 13 months later, solidly proving the public's interest in sound.”