When the theater is burning down you can see daffy, a gremlin from Gremlins 2, in the fire.
Contributed by: daniel winters
When Gizmo falls into the trashcan, Billy brings him to the bathroom to put gauze on his wound.
Look at Gizmo's behind real closely, you can see a finger sticking up his butt. That's the puppeteer's finger!
Contributed by: Daniel Winters
If you watch Gremlins in wide screen, you see ears of Gizmo. In the scene in the bathroom you can see that they are Animatronics.
The movie projector in the class room is running normal and then when the teacher comes back after ushering the kids from the class it's running backwards