A thug rips open the back of Gadge's shirt, which is back in one piece soon after.
When "guy with glasses" tries to run over Tobor while escaping in a car parked beside the house, Tobor pulls him from the car and and now the car is directly in front of the house and not the garage.
When Tobor escapes from Professor Nordstrom's compound and knocks down the high voltage gate, it sparks as he walks across it. But at this point the gate isn't connected to anything.
Early in the movie, a model of the earth, rotating on its axis in space, is seen moving from West to East - the wrong way.