Other mistake: When Stark was making the new Triangle core, where the Laser beam melts everything on its path, you will notice that the wall, locker, shelves are cut into pieces, but when the powerful laser beam reaches the core, all three wires were left unscaved/not scorched. (01:23:00)
Other mistake: Justin Hammer picks up the M134 like it's a feather. In reality, it's a hundred pound gun, even a big bloke would have to work hard to pick something like that up.
Other mistake: When Tony drives the city model home in his convertible, the wind would have blown away a lot of dust. When he sets it up at home, he blows a thick layer of dust off it.
Suggested correction: The wind would have blown dust off the exposed sections, but it was stacked. There would still be dust on other parts of the model.
I just believe the wind would easily be blowing strongly throughout the entire thing. It's not aerodynamic nor wrapped in any way, plenty of space between the pieces. I highly doubt dust should be present on that.
