"The St. Valentine's Day Massacre" Roger Corman's 1967 film about the pre-Depression-era mob seems like a stage play now

I hope it is not too exploitive now to post about the 1867 Roger Corman film, “The St. Valentine’s Day Massacre”.

  

It’s about a huge mob hit by Al Capone on a rival Bugs Moran gang on Valentine’s Day in 1929 in Chicago.

I recall seeing it at the Varsity theater in downtown Lawrence in the early fall of 1967, my last semester of graduate school there before the Army.

I was surprised by the constricted look of 1929 Chicago.  The movie seemed like a stage play.  But the last scene, the shootings, is quite brutal.

The Fox film is in Cinemascope but the sound is only mono.  The Deluxe  color is garish.