en CB01 OFFICIAL. This softball umpire training film was one of Les Blank's early industrial films made in 1962 prior to his independent filmmaking career. He made over 20 industrial films which helped him hone his skills as a filmmaker. Les recorded his own voice for most of the umpire calls which are humorous. Found as a marked-up work print in a cardboard box, this film wasn't completed until 2015.