Corrected entry: The film takes place in the year 1947. Near the end, when Benny is examining the remains of Doom, he says that he's been a cab for thirty-seven years. American Taxi cabs didn't look anything like that back in 1910.
Corrected entry: In the Ink and Paint club, you can tell the hand Jessica uses to grab Eddie's tie is a real one, since it's lighting is so much different to the cartoon body beside it.
Correction: While true that an actor was used for much of Jessica's dance routine, the actor was painted over so there would be no lighting difference.
Corrected entry: In various shots throughout the movie, you can actually see lit backgrounds right through the toons.
Correction: So? They may be alive, but they are still are painted on transparent celluloid film (that's why 'dip' kills them). It's only natural they would be slightly transparent.
Corrected entry: When you're in the Benny the Taxi, picking where you want go, go to the Acme Movie Theater. In Special Features it shows a splat on a box, you can press a direction and you should see eyes, then you click Enter and special things will happen. (Found on disk 1.)
Correction: On the 20th Anniversary DVDs, these things happen in the Acme Warehouse, not the Movie Theater.
Corrected entry: In the scene where Hoskins and Roger pull up to Maroon's office in the car look at Hoskins' pants, they're a much lighter color. But when he gets out and talks to Roger they're now much darker.
Correction: Bob Hoskin's light khaki-coloured trenchcoat covers his dark trouser legs while he is seated in the car. You can see how long the trenchcoat is when he climbs the stairs.
Corrected entry: In the scene where Roger and Hoskins get away in the cab watch the weasels get into their van. As they pull away quickly look at the side of the van to see a reflection of a boom mic. (00:55:55)
Correction: What we actually see is a reflection of a lamp post.
Corrected entry: When Jessica is done singing her song at the Ink 'N Paint Club, if you look closely at her left hand while she is walking toward the curtains (away from the camera) you can see that she has her middle finger stuck out, as if flipping everyone off.
Correction: Is that really an error? No. There are other instances of "improper behavior" in the movie as well.
Corrected entry: Toons can only be killed by 'Dip', but the weasel operating the 'Dip' cannon is killed when he falls into the machinery.
Corrected entry: If you go frame by frame on the DVD (because this happens rather fast) at the part when the Weasel's shoot off the lock and knob to Eddie's apartment, you can see that the wood where the bullets come through (before they actually do) is a slightly blacker colour. This means they're actually mini-explosives being set off on a track in the wood. More to the point, the bullets are not only shot in a perfect square from a 1930's Tommy gun, but when the knob and lock fall off when the weasel's enter, the space where it falls out of is a pre-cut perfect square. Not likely if it has been taken off with a machine gun. (00:41:10)
Correction: If you have to go frame-by-frame or slow motion to see this, it is not a movie mistake.
Corrected entry: When Eddie, Benny and Roger are being chased by the weasels, Benny drives into an alley backwards. If you freeze as the shot changes, Eddie is not in Benny - it's a CGI model of Eddie.
Correction: If you have to use freeze-frame or slow motion to see something, it is not a movie mistake.
Correction: Then again, Bugs Bunny, Donald Duck, and Mickey Mouse looked very different in their early years as well. It's very conceivable that Benny the cab has (in the film universe) undergone the same type of cosmetic changes over the years.