After Burl Ives falls overboard, Ensign Pulver releases a rubber raft to assist in the Captain's rescue. When the raft falls into the water, it obviously falls upside down, however, in the next shot it appears that the raft is upright and all of the equipment is still aboard.
Bruno is referred to as being a Seaman First Class, when his uniform insignia is clearly that of a Petty Officer Second Class.
In the beginning of the scene where Captain Morton and Ensign Pulver are adrift and Morton begins telling the story of when his wife left him, a boat is visible on the horizon.
During Captain Morton's appendix operation he sings The Joy Boy's radio theme song in his drunken stupor. The Joy Boy's show didn't premiere until 1955, more than 10 years after the movies time setting.