Goofs

Marvin Dummitz tries to steal a wedding dress and the security officer takes the veil from him but when they go outside Marvin is wearing the veil.

Just before Jeff, Kenny & Lisa head back to the house to drop the first load of stuff in their van following the laughing gas scene, Lisa is still wearing the outfit (minus one or two items) she was in when the will was read. When they return to unload what they collected she is wearing a checkered shirt & jeans, yet had no change of clothes.

When the safe dropped into the Caddy, the axle broke. It would not have been possible to drive it off,

After the Zoo Keeper hangs up the Phone from talking to someone about the Ostriches, A shot from inside the ostrich pen is seen, and on the left side of the screen you can see two Crew members running off screen.

At the end of the contest, the suit of armor didn't actually move from one pen to another "on its own." It was moved by a human being - the person wearing the suit. Per the game rules stated in the film, the combined teams should not have been allowed to claim the points for the suit. And, yet, neither the attorney for the estate, nor the attorney who participated in the hunt, objected to this obvious point.

Not one person thought of looking inside the mansion for any Items on the list.