Continuity mistake: When Mama Fratelli says, "Follow me," and begins to walk along the side wall, past the skeleton's bone keys, her body faces the skeleton as she holds a large flashlight in her left hand and the wall with her right hand. Next overhead shot she is turned around to face the wall and the flashlight has switched hands. (01:24:10)
Continuity mistake: Aboard the Inferno in One-Eyed Willy's quarters, when Brand says, "Don't know. Who cares?" he's holding a candlestick with a candle. When he fills his pockets with the riches in the previous and following close-ups, the candlestick style differs and it's loaded with melted wax. (01:30:25)
Continuity mistake: At the start, when Data practices with the orange drum, just as the blue suction dart is released, the stick part remains on his belt while the suction cup and string go flying off, but in the next close-up the stick is between the string and suction cup, then the next shot of the belt shows the stick is gone. (00:03:50)
Continuity mistake: During his escape from the County Jail, when Jake tries to open the locked car door, in the interior shots looking out, the window between Francis and Jake is completely covered in water droplets, but in the exterior shot facing Francis that window is spotless. (00:01:45)
Revealing mistake: On Inferno's deck, when Data takes a stand against the Fratellis before he shoots the blue suction dart/string, the close-up of his utility belt is the same one seen at the start when he practices on the orange drum. Note the differences in the background and clothing/inventions under the coat. (01:31:50)
Continuity mistake: In the Walsh kitchen, after Mouth gets wet, Mikey unfolds the map and holds it in front of him. In the next close-up facing Mikey, Chunk, Data and Mouth, take note of their hair, particularly Chunk's and Data's. It is much shorter than previous and following shots. (00:22:30)
Revealing mistake: When the bats escape from the fireplace, it's obvious they are just black pieces of material.
Factual error: As Stef is stepping down the fireplace, you can see that her Nike swooshes are drawn on her shoes. Nike never made shoes like that. Converse made them for a couple years in the 80s. (00:46:00)