This film uses the feature characters in a story setting that was a regular DC Comics war story series, "The War that Time Forgot." It was a series featuring the adventures of World War II soldiers struggling to survive on a deserted island that is incongruously populated by dinosaurs.
Included as a special feature on the blu-ray release of Batman: The Long Halloween - Part One (2021).
Included as a DC Showcase short on the bluray release of Constantine - The House of Mystery (2022).