Well then, did someone splice some post-1942 video into the video of Ford's? At the 10:19 mark we see a pair of quad 1.1"/75 caliber guns firing.
Per Wiki, those are firing from the carrier Hornet CV-8 in May 1942. Note the sailor sitting on the edge of the deck at the 10:19 mark in the video and on the Wiki below. Some of the other scenes of splashing Japanese planes look awfully like 1944-1945 era video.
I’ve seen multiple Dauntless attacks on Pearl Harbor in American documentaries. Also saw Ju87 Stukas attacking Pearl Harbor in one of the American productions.