Continuity mistake: After Bill punches the door open at the end of the alley, the old couple get up and escape. There is a wooden barrel and trash in the corner where they were hiding. But moments later when Batman breaks Bill's leg, the corner is seen behind him and the barrel and trash are gone. (00:05:15 - 00:05:55)
Continuity mistake: When Goofy searches through the dresser drawers one of the ghosts causes trouble, then Goofy breaks through the top of the dresser and winds up trapped inside, but when all four ghosts appear the dresser top is perfectly fine and that damage has vanished. Also, two of the drawers (one large and one small) fall out of the dresser, but as the four ghosts are pushing the dresser those two drawers have reappeared in their proper places.
Continuity mistake: At the flight station, when the captain addresses his men and says, "That's 28 men and 28 tries," the captain's ribbons, medals, and cap change colors. (00:03:15)
Continuity mistake: At the start of the film, Eggman is chasing Sonic through the streets and there is a shot of the city skyline down a street behind Sonic as he makes a turn. The camera then cuts to inside Eggman's ship to a close up him with the city skyline still behind him, only now it's different buildings behind Eggman. (00:01:00)
Continuity mistake: Once Constantine and Chas make it to the address given to them by the demon, Constantine knocks on the door with the knocker ring. Between shots the ring suddenly becomes larger after he stops knocking. (00:26:00)
Continuity mistake: At the end of the movie, before the Guardians leave, Jamie rushes over to hug Jack. In the first shot, the top of his head nearly reaches Jack's ribcage. However, in the following close-up shot, Jamie is almost at the same height as Jack's shoulders. (01:27:30)
Continuity mistake: There's a hole in Conductor Pete's right shoe sole which repeatedly disappears and reappears.
Continuity mistake: While Bugs is dressed as Captain Bligh his bicorn cockade vanishes. (00:02:40)
Continuity mistake: Velma adds books to the pile in front of her when she takes the telephone order. Looking down the pile, you don't see any trace of the random loose papers that appear when she hauls the whole lot to the desk with the TV on. (00:06:25)
Continuity mistake: When the Wolf runs to the cabin, the front door is initially made of wood. But when the Wolf opens all the doors and finds McPoodle waiting for him, the front door now has molding on it.
Continuity mistake: Curved lines briefly appear on the soles of Barbara's shoes when she's kicking the ice stalagmites. (00:33:30)
Continuity mistake: When Jimmy and the rest of the kids are standing on the balcony, Jimmy asks Goddard to activate his binoscope so they can get a better view of the arena. Goddard then extends his eyes into tubes and raises them. However, in the next shot, his eyes are raised but not extended into tubes yet. They also take on a different shape than in the previous shot. (01:04:53)
Other mistake: When 1 strikes off 2 (I think) from the calendar we can see that 1 is Wednesday, 2 is Thursday, 3 is Friday and that 4 is Saturday but 5 is Monday; meaning that Sunday has no date.
Continuity mistake: Rafe has just met the bumbling fool that is his principal: as Leo sneaks out of the building to meet them, behind Rafe a girl wearing white and pink is walking past them and getting into school. Several seconds later as the principal has already begun lecturing Rafe, the camera is back on him and the same girl is again walking behind him and getting to school. (00:07:30)
Continuity mistake: Bruce and Selina sneak away from the party while Bruce's neglected childhood friend fetches the drink. The bottles on the shelves behind the counter change between shots when he goes "Seriously? Both of them?" It's like a portion of the leftmost shelf has been sliced off for the close-up. (00:05:00)
Revealing mistake: When the Level 3 Sentry is firing up into the air for no apparent reason, it fires some rockets with a clear defined smoke trail behind them and disappear off screen. Then the shot jump cuts to further away and suddenly the smoke appears again, but the end of the smoke trails are solid and crisp indicating the animators used the smoke animation as if the rockets had just been fired from that spot... in the middle of the sky. (00:01:10)