Continuity mistake: At the Astoria Country Club, when the first shower handle disappears into the wall, the three surrounding tiles break off entirely from the wall. After the next few handles disappear, the wall with the first disappearing handle is shown, but now the square tiles are intact and only cracked.
Continuity mistake: When Chunk and Rosalita are eyeballing each other regarding the statue, there are colored curtains and sheer white curtains hanging from white rods on the two windows behind Chunk (behind the recliner). When Mikey unrolls the map in his kitchen, through the doorway we see that the sheer curtains are gone and now there are shades behind the colored curtains. (00:12:30 - 00:22:25)
Continuity mistake: During the jail escape, when Jake is trying to open the locked door, there is a close-up of Mama Fratelli shouting, "Jake, up!" and we see a police cruiser parked on her left. When they leave, in the overhead shot that space is empty, but next shot a vehicle is there, though it isn't a police cruiser. (00:01:55)
Continuity mistake: When the first police car makes a U-turn, to chase the Fratellis, the squad car's front passenger window is rolled up, as the officer's hands are on the steering wheel. But in the next interior shot, facing that window, it's rolled down - there's even a black wire hanging over the bottom of the open window, to the left. (00:02:30)
Continuity mistake: When Mouth goes down the hole in the fireplace passageway, the cooler base is right beside the fireplace, but when Mikey pushes Data and his backpack into the hole, the base is farther away. When Brand pulls the log holder over the hole the base is back, right beside him, but when Chunk heads for the basement window the base is farther away again. (00:45:45 - 00:47:20)