This film (narrated by Ronald Regan) was produced in the 40s. It discusses detailed planning for an air mission into an area in Japan.
Did Japan have similar fims in the time period to aid them in any missions to the US?
This is the film JIA made after they attacked Pearl Harbor and Malaysia ( including much of propaganda but including the real footages ( even to me hard to tell )).
Unfortunately, Hawaii ( or Midway ) is the closest U.S soil Japanese was able to advance or attack. If the "colonies of the U.S in the 40's" are O.K, then,
This is the film made by the Japanese Imperial Army then about the attack on the Corregidor ( and the advancement and the propaganda until there ), then the U.S's territory in 1942. This would be probably the most direct answer to you, 1) made by Japanese "secretly", 2) Against the "U.S" soil, 3)in the 40's. 4) On the premise "negative" connotes any attack on the U.S soil.