The crane-grab lifts different trees and grips around them in differing amounts in the single sequence of it lifting a tree.
The logging truck that Steve and Jeremy ride has different numbers and sizes of logs between shots.
The airliner is stated as flying at 40,000 feet, so it would not look or sound nearly so close to the ground as it is shown to be at the end of the movie. The pilots would not likely be able to see the explosions on the ground from at least 8 miles away, either.