OK, in the one scene where the green goblin comes to the world unity fair, and he throws a bomb at the balcony, the windows shatter but they shatter out-wards when they should have gone in-wards.
Goblin throws the bomb against the wall beneath the balcony. When the bomb goes off, the windows shatter. However, they don't shatter as a direct result of the explosion. The force of the explosion sends shock waves through the stone walls, causing the window glass to shatter. This means that the could, indeed, shatter outwards.