Although several horror/suspense movies (most notably Psycho) were advertised with the warning that patrons would not be seated after film began or during climactic final minutes, ads for this one included the unenforceable caveat that no one would be allowed to leave the theater during the last 13 minutes.
In his autobiography Bloch expressed regret about getting screenplay credit on this film as it was rewritten, and he felt ruined, by one of the producers - who was refused credit by the writer's guild.
This film was re titled THE CABINET OF DR CALIGARI for its UK release, in September, 1962.
The $1000 offered equates to about $9500 in 2022 money.