That Gang of Mine is a 1940 film directed by Joseph H. Lewis and starring Leo Gorcey and Bobby Jordan.^[1] It is the third film in the East Side Kids series.

Old horseman Ben brings his beloved thoroughbred Bluenight to New York from Kentucky in hopes of developing him into a championship racer. Because the old man is down on his luck, the East Side boys offer to provide a makeshift quarters for Bluenight, and Algy Wilkes persuades his father to put up the entrance fee for the horse. Muggs Maloney, an aspiring but untested jockey, rides Bluenight in the race, but loses his nerve on the track, causing Bluenight to trail in the field. Seated in the stands is Morgan, a respected trainer, who recognizes the horse's ability and urges Mr. Wilkes to race the horse with an experienced jockey. However, Muggs insists upon doing the riding, and his pals induce Mr. Wilkes to give him another chance. Complications arise the night before the race when Nick, a crooked bookie, tries to sabotage Bluenight. The boys discover the plot and save the horse, but the next day, Muggs realizes that he cannot guide the horse to victory. With the use of his fists, he convinces jockey Jimmy Sullivan to take his place, and Bluenight finishes the race the winner.

• Associate Producer: Pete Mayer
• Set Decoration: Fred Preble
• Production Management: Ed W. Rote
• Second Unit Director/Assistant Director: Arthur Hammond, Herman Pett
• Sound Recordist: Glen Glenn