Revealing mistake: When the smudge pot is set off, it's on the ground, smoke coming of the ends. A moment later, along with a huge cloud, if you look at the bottom of the scene, there's an area about five feet wide billowing smoke.
Revealing mistake: In various scenes before the Compass Rose is supposed to be fitted with radar, it's obvious the 'lantern' round the already fitted radar aerial has been removed and the aerial itself covered with a tarpaulin to simulate the ship in its earlier, pre-radar, state.
Revealing mistake: Before Warden and Pruitt start the back alley knife fight, vapour is coming from Warden's mouth while he's talking to Pruitt, indicating the outdoor scene was not shot in Hawaii, a warm climate, but probably in California on a cold night.