Revealing mistake: When John Garfield is trying to stop Lana Turner from calling the District Attorney, Garfield holds the receiver up in the air off the hook. Then the phone rings. But a phone cannot ring when it is off the hook.
Revealing mistake: In Art Huck's living room before Pat Clark throws water into Marlowe's face, Lauren Bacall's eyes are closed in anticipation of being splattered (1945 Version on DVD). (01:41:30)
Revealing mistake: When George is on the bridge and says "I wanna live again", and Burt drives up, in the shot where George hugs Burt, then Burt pats him on the back, you can see Burt's handprint in the fake snow that was used (a mixture of foamite soap and water) on the back of George's coat. (02:02:35)
Revealing mistake: When CG and IB are on the plane, watch the scenery in the window. It appears to be going in reverse.
Revealing mistake: When Ballin's plane flies and finally crashes, it becomes obvious that the horizon is a still image with the film of the explosion superimposed directly onto it.
Revealing mistake: When Tom is sitting by the window looking at Toodles at the start of the cartoon, his tail is missing.
Revealing mistake: When Sylvester is on the run from Porky, he dives under the bed, but the cels of him diving were placed over the bed, so that he appears to dive on top of the bed and disappear.
Revealing mistake: Just before she KOs the lecherous producer, Peggy Harper gives him a big stomp on his right foot. Or that's what it was supposed to look like because the adorable Betty Hutton just slams her foot on the floor at a very safe distance from Howard Freeman's. (00:24:15)
Revealing mistake: When Fred Derry gets on the B-17 at the end of the movie to exercise his demons, the nose section of the plane noticeably moves when he gets on and gets off, showing it's a studio prop.