Corrected entry: In her investigation, Cindy Lou was told that the Grinch disappeared. Martha May says "And that was the last time that we ever saw him. The very last time." If that is so, then how did the Whos know that the Grinch was living on Mount Crumpit? The paper shown has a picture of Crumpit, and the Grinch in a close up.
Corrected entry: When they show the scene in the post office there are approximately 100 mail slots, that seems to be far less than the population of Whoville.
Corrected entry: How convenient is it that when he goes up to save the sleigh that there are steps to get up the mountain?
Corrected entry: When in the town square, the mayor announces that it's time for nominations for Holiday Cheermeister. The camera goes out to a wide shot, and there is a person in the foreground of the shot with a yellow balloon. The tether on it never straightens out like an ordinary string. It stays crooked.
Corrected entry: When Betty is putting up her lights, Martha May comes out of her house and shows her the old antique chandalier thing. The next thing she shows her is the light machine. In one shot, Martha is shaking while using the machine, in the next she isn't. It keeps changing throughout the scene.
Corrected entry: In the middle of Whoville they have a very large Christmas tree. Towards the middle of the movie the Grinch burns it down and the Whos put out an "extra one." When the Grinch is "Santa" and steals all the Whos' presents he also takes the big Christmas tree that's in the centre of Whoville (you can see the tree in the big red bag on the sleigh when he's at the top of Mt. Crumpit). Later all the Whos are singing in a circle around the big tree that the Grinch JUST took.
Corrected entry: In the scene where Drew and Stu Lou Who are going up Mount Krumpit with the two girls at the beginning of the film, you can see a mike in one of the overhead shots - right around the time when the boys are saying 'You're scared of the Gri-inch, you're scared of the Gri-inch."