Continuity mistake: The two sisters are in their room backstage. One sister is holding a coffee pot and pours a cup of coffee, and then puts the coffee pot down. The camera cuts away and cuts back and now she is holding the coffee pot again.
Continuity mistake: When the General comes into the room for his surprise party the old lady and the granddaughter step back when he first enters then the camera cuts to another angle and they step back again.
Continuity mistake: Near the beginning during the war when the two actors are in the tent - they are sitting on a cot talking - they are next to each - then not - then next to each other in same scene.
Continuity mistake: Watch Mary Wickes button-down blouse during the scene when she eavesdrops on Bing Crosby's phone call. There is one short sequence where one button has come undone. The rest of the time, all buttons are fastened securely.
Continuity mistake: During the General's birthday scene, the camera follows him into the room, the candles on the cake are lit. Angle changes to the left, as he continues to walk, the candles are out. Back to behind, the candles are lit again.
Continuity mistake: On the train scene in the dinner, watch the table. Every camera angle change, the salt & pepper shaker, the ashtray, the flower, everything, jumps around on the table...
Continuity mistake: There's a mysterious moving pitcher of buttermilk and a tray of sandwiches in one of Bing's scenes in the Inn.
Other mistake: When Bob and Phil sub in for the girls during their "Sisters" number at Novello's in Florida, they have only heard the song performed once and we are supposed to believe that they memorized all of the lyrics? Also, in the same scene, there is an "ooh!" after they sing the line ".the same in the rain or sun." Obviously, the men are lip-syncing to a recording made by the Haynes Sisters, but the sisters' live performance did not contain the "ooh!" so how did Bob and Phil know to do this?