The main reasons to see this film today, aside from historical curiosity, are the performance of Cagney and the well-choreographed fight scenes. Blood on the Sun won a single Oscar at the 18th Academy Awards in 1946, for best art direction in a black and white film, but it should have won for “most awesome martial arts battle in an American film.” Sadly, such a category did not exist. How could it? Martial arts were new to Hollywood. Some people cite John Frankenheimer’s The Manchurian Candidate (1962) as having the first real martial arts fight scene in an American film, which is clearly not the case. Frank Sinatra and Henry Silva’s karate chops were fine, but they pale in comparison to the brutal judo smackdown that crowns Blood on the Sun. Cagney studied judo for this film, and liked it so much he kept it up for most of his life. How could he not? A born-and-bred brawler, Cagney clearly took to martial arts like a fish to water. The combination of judo throws and boxing as he fights the leader of the secret police, Capt. Oshima, played by Jack Sergel (who acted under the stage name “John Halloran”), is fairly basic by today’s standards, but it’s still impressive. Cagney and Sergel go to the ground several times, and the chokeholds and arm bars look as if they hurt. So do the throat punches. Sergel was actually my favorite actor in the film after Cagney. He’s tall, menacing, and has a shaved head and black mustache. He doesn’t look particularly Japanese, but he’s more convincing as an Asian than any of the other white actors in the film. Sergel was a former LAPD officer who had been investigated by the FBI because of his involvement with the sport of judo, including his participation in at least one judo tournament that was held in a Japanese internment camp. Even though he was a Los Angeles police sergeant and loyal American citizen, his admiration for Japanese culture and sport was seen as suspicious by federal and local authorities, and he ended up resigning from the LAPD in 1944. Cagney spends a lot of his time in this film punching, kicking, and throwing the bad guys who come after him, but his fight with Sergel is the high point. Cagney was a small man, and Sergel towers over him, but Cagney’s sheer physicality makes you believe they’re evenly matched.