Continuity mistake: Batman deals with one of the jewelry robbers pulling him out of the car. Robin uses the bat-rope to grab the one that is running away; when he's running, just before he's caught by the rope he passes by a manhole to his right. When Robin's gun drags him throughout street, the manhole is on his left. (00:10:15)
Continuity mistake: After beating the two robbers up, Batman and Robin dump them in a pile of trash on the sidewalk. That pile of trash was not there when the car turned the corner and crashed in front of the grocery store. (00:10:35)
Continuity mistake: The movie gets a lot of details right when it shows the establishing shot of the exterior of the fundraiser event Bruce Wayne goes to after the initial action; perfect continuity with the car models and people in the crowd ascending the stairs. But somehow, it has three people standing in front of the teal car, instead of 'just' two. (00:11:40)
Character mistake: The banner of the fundraiser event for the Gotham upper class says "Childrens Hospital", no apostrophe. (00:11:55)
Continuity mistake: Batgirl roundhouse kicks one guy in the park. In the background, the victim has her left arm down, but it's up in the following shot. In that shot her walkman is also missing the cable linking the headset to it (it is there when Batgirl helps her stand later, same camera distance). (00:12:35)
Plot hole: Mr. Freeze's old pal Dr. Gregory Belson needs to search for a compatible *organ* for Freeze's wife. He's trying to go through the proper channels at first, and search for, in his words, "available organs" and "deceased donors." The weirdest part about it is that he's searching the blood donors database. Why would the blood donors database have that kind of information? (00:19:20)
Other mistake: When Dr. Belson searches the blood donor database, a lot of weird stuff happens; first of all, he is searching it by name, and it's the name of Mr. Freeze's wife. Since for some weird reason she is shown later being in the donors database (doubtful that someone with an incurable disease would be a donor!), it should return the information about her, but it does not. Secondly, he is opening the database search again once Freeze promises the gold vein, and the form shows already the personal data of Nora but without her name this time, and including the blood type, which he types only in the next close-up. (00:20:50)
Continuity mistake: When Dick gets slapped away from Freeze by the bear, he sits up; in the background there's one of the many dudes in red tie and cream colors, but the man was not there a moment earlier. (00:24:25)
Other mistake: Freeze gets in sight of the toll booth (we see the headlights from his truck on the asphalt before it), and there's a car in the outer lane he is travelling in, but he has a (too) long and uninterrupted run in that lane. That aside, the road goes from having 4 lanes to 3 lanes and back to 4 lanes, and everyone is going at mad speed having barriers this close (especially with the toll booth not being automated). (00:27:00)
Continuity mistake: Freeze picks up the pills Barbara Gordon slapped out of Dr. Belson's hand. The pills are scattered in his palm differently between shots. (00:29:40)
Continuity mistake: At the hospital, Gordon issues orders to Montoya, then turns around to talk to Bullock. The stick in his mouth goes from the right corner to the left between shots. (00:30:25)
Other mistake: When Bruce Wayne is searching the database after the nurse leaves Dick's room, the screen initially has the vital stats (height, age etc) of Nora, Mr. Freeze's wife. (00:32:00)
Continuity mistake: Barbara escapes traveling inside what is shown as a straight ventilation pipe, the closest intersection to her left being practically all the way to the back of the room with one to the right somewhere in between. Magically once Belson slips past the grate she has a left opening from a T juncture to escape into, right behind her. (00:33:25)
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 Barbara kicks the ice stalagmites loose, her right sock briefly disappears. Her left sock also briefly disappears when she kicked the ice stalagmites. (00:33:30)
Continuity mistake: Barbara slips through the air conditioning conduit into the room next to her cell. Freeze uses his gun to cut her escape path. We see that the icy spikes are past the vent, since Belson opens a grid right before them, but when Barbara kicks the stalagmites loose, Belson pops up behind (or from) them. (00:33:30)
Continuity mistake: In the room where Nora is stored, Barbara smashes with a pipe the bottle on the table. The liquid is spread to one side in the first shot, in a circle in the following. In the next shots, more inconsistencies appear (liquid appears to be leaking off the table, only to show later a half-circle nowhere near to any of the table edges). (00:34:45)
Continuity mistake: While Batman and Robin are at Arbagast's home, the phone rings so Robin gives Arbagast the handset. When they realise it's Belson on the line, in a closeup Robin clicks the machine base to record the conversation. The problem is that in this closeup the handset is still in its base, even though Arbagast is still holding it talking to Belson. (00:42:45)
Continuity mistake: Konak rips the tube off the anesthetic gas canister, but the next time the room is seen, the whole tank is on the ground. (00:46:55)
Continuity mistake: Robin looks with binoculars out of the right side of the bat-wing plane, and spots the oil rig...which is directly in front of it and a bit to the left. (00:47:40)
