Detective Comics
Detective Comics is an American comic book series published by DC Comics. The first volume, published from 1937 to 2011 (and later continued in 2016), is best known for introducing the superhero Batman in "Detective Comics" #27 (cover dated May 1939).
Batman in film
"Batman" was a 15-chapter serial film released in 1943 by Columbia Pictures and was the first appearance of the comic book character on film. The serial starred Lewis Wilson as Batman and Douglas Croft as Robin. Being a World War II era production, the movie serial like many of this period was used as war-time propaganda and had an anti-Japanese bent with J. Carrol Naish playing the Japanese villain, an original character named Dr. Daka. Rounding out the cast were Shirley Patterson as Linda Page (Bruce Wayne's love interest), and William Austin as Alfred. The plot is based on Batman, a US government agent, attempting to defeat the Japanese agent Dr. Daka, at the height of World War II.