Continuity: In the scene where Tom Hanks is battling Jude Law in the hotel room, just before you see Hanks shoot the glass vase that shatters in Law's face, there is a shot of Tom Hanks jumping out behind the chest to get the final round off. Unfortunately, Tom Hanks's 1911 is empty in that shot - you can see the slide locked back.

Factual error: The second original old song is "Queer Nations" performed by Fletcher Henderson, but this song was recorded in 1934, not '31.

Factual error: In the scene where Michael is going to get John Rooney's jacket, we are introduced to the character Conner Rooney. Notice that Conner is smoking a filtered cigarette. The movie takes place during 1931, but filtered cigarettes were not introduced into the market until 1936.

Revealing: Just after Mike Sullivan has taught Michael Jr. to drive, they are driving down a small track with a tractor taking up most of the road. If you look through the bushes on the right side of the track you can see a large modern road with metal barriers.

Plot hole: When Sullivan shoots Connor Rooney at the end, he flicks the door and we see the dead body. However the wall and some of the floor have loads of dried blood on it when he was only shot seconds before.

Revealing: When Peter and his mother are being shot, note that Mike Jr., standing outside the house, hears the sound of the shots just before seeing the flashes. The slight delay between the flash and sound is probably pretty close, but he should have seen the flash before hearing the sound of the shots.

Revealing: When Mike and Mike Jr are driving down the road after Mike shoots Rooney's messenger the lights of a commercial plane flash twice in the night sky.

Factual error: Some of the movie was filmed in the Conrad Hilton Hotel in downtown Chicago. Only in 1931 this hotel was named "the Stevens". Conrad Hilton purchased this hotel in the 1950's. Look closely and you can read the name "Conrad Hilton" written in script lettering. The lettering is out of focus on the wall in the background so you have to know what to look for.

Continuity: In the scene where Michael Jr. is riding home on his bicycle (before his mother and brother get shot) he drops his bike and runs to the house. A few minutes later when Tom Hanks is driving off with Michael Jr., it shows his bike. The bike has snow covered on it, but it is not snowing, the snow has stopped.

Continuity: In the scene where Tom Hanks shoots Connor Rooney, you see him dead with a splatter of blood above his head, but Hanks shot the gun at a downward angle.

Revealing: Half the time the Colt 1911s in this movie are fake. In the scene where Tom Hanks is killing all the mobsters in the rain and it's in slow motion, if you watch all the guys with 1911s firing, there are muzzle flashes, but no slide movement and all the hammers are decocked. You can also see this in the scene where Hanks kills Paul Newman's son. It's interesting though, because the muzzle flashes aren't added in later - if you watch the making of it on the DVD, you can see Tom Hanks firing one of the guns - they're basically shooting smoke and a reddish, somewhat fire-crackery looking red flame.

Audio problem: When Tom Hanks ecapes from the hotel and Jude Law is shooting at him out of the window, you can clearly see a flash from Jude Law's gun but no sound.

Factual error: In the country church where Tom Hanks says a prayer, there is a bible sitting in the middle of the altar instead of the tabernacle. Prior to Vatican II, Catholic churches always placed the tabernacle in the center of the altar with the bible off to the side.

Audio problem: At the end of the movie when Tom Hanks is in the lake house, and throughout the whole lake scene, the sound of the lake is not synchoronised to the movement of the waves. Must have added the sound of the waves after.

Continuity: After the night scene of heavy rains, you would expect at least some of the snow to melt the next morning. But if you look closely, the snow mounds in front of the Sullivan home are identical to the shots in the first few scenes, before the heavy rain.

Continuity: When Hanks dies at the end, you can see his left hand laying on its side, but in a wide angle shot of the same scene, you see his hand laying on its back.

Continuity: At the end of the film, when Tom Hanks' character is dying, we see his eyes slowly close as his son cradles his head. Yet in the next cut, when Hanks' character is dead, his eyes are wide open.

Continuity: Tom Hanks has a Colt 1911 tucked into the small of his back throughout the whole movie except for the very end when he shoots Jude Law from behind with a .38. His son doesn't have the 1911, so what happened to it, and why did Tom decide to trade it for a revolver?

Continuity: When the mother and son are shot, it shows from the outside, and the gunfire flashes in the one (suspected) bathroom where they were killed. Just before, the light was on, and then when Jr. went to find them, the light was back on.

Continuity: When they're leaving Chicago for the first time, the snow on Mike’s car has melted leaving stains, but the snow on the windshield has melted leaving the windshield crystal clear. He didn't have time to clean the windshield.