Visible crew/equipment: When the two boys are in front of the Grinch's front door, a big monster comes out of the front door, scaring them. The boys then jump off the side of the rocks, and a cable attached to them is perfectly visible.
Visible crew/equipment: After the Grinch takes the little car, in one of the shots you can see a stage light behind him. (00:57:25)
Visible crew/equipment: When the Grinch is building the sled as he is putting the tin sheets on it there is an overview shot where you can see the shadow of the camera. (01:01:01)
Visible crew/equipment: The movie was filmed in a large set to recreate Whoville, but in the mayor's first appearance, if you look in Lou Who's glasses, you can see a stage light from the ceiling above.
Visible crew/equipment: While The Grinch is returning to his home for the first time that we see and after he says "one man's trash is another one's potpourri" while he's entering you can see the shadow of the machine that holds the camera up high behind him and Max.
Answer: Then why does it appear as a tiny speck in Horton Hears A Who?
In "Horton Hears a Who", both the book and the animated film, the speck of dust lands on a clover. In the 2000 Grinch film, the speck of dust has now landed on a snowflake because it's winter time. It should be noted that it's only the 2000 Grinch film that has Whoville as a speck similar to Whoville in "Horton Hears a Who." In the book and other adaptations, Whoville and the Whos are normal sized and probably located somewhere in Massachusetts.
Bishop73
Where are you getting Massachusetts from?
Brian Katcher
Dr. Suess was born in Springfield, MA and there are some that claim the drawings in the book are similar to Easthampton, MA and Mt. Tom (although others say it's La Jolla and Mt. Soledad in California). Residence of Easthampton put on an annual "Whobalation" to celebrate the legend Whoville is based on them.
Bishop73