This was originally supposed to be a three episode OAV series, but due to a lack of time and money, only the middle segment was animated and given theatrical distribution.
There is no separate English and Japanese sound tracks. Eight of the eleven main characters are voiced by English-speaking actors, the other three actors switch between Japanese and English depending on who they are talking to.
The first fully digitally animated film from Japan.
The bottle a demon uses to burn the bar is a bottle of Tequila Herradura
The plane flying over head, just before the closing credits start, is a Boeing B-47 US Air Force Medium Bomber, but the voice over implies it is a B-52.