Some very nice footage of 4th and 56th FG fighters, along with some P-38 footage. One of the Mustangs appears to be P-51D-10NA 44-13959, 'Proboscis' of the 334th FS, 4th FG. You can sure tell the gun camera footage of the P-47's and P-38's because of their concentrated firepower of either eight fifties or the four fifties and single 20mm. You have to love the old propaganda/training films from WW2! Dunno what was parked under those trees, but it sure went up with a bang!
Mike
https://www.youtube.com/watch?v=lEJa9iBPYb0