Premise: The Doberman Gang is a 1972 film about a talented animal trainer who uses a pack of Dobermans to commit a bank robbery. The six dogs were all named after famous bank robbers. Their names were Dillinger (John Dillinger), Bonnie (Bonnie Parker), Clyde (Clyde Barrow), Pretty Boy Floyd, Baby Face Nelson, and Ma Barker.
Hypothesis: None of the dogs in The Doberman Gang had a name that included the last name of the bank robber they were named after.