Visible crew/equipment: When Eric is riding through the hills and fields away from the cops, with MAC in his lap, ramps can be seen to help him with maneuvering his wheelchair easily.

Audio problem: In McDonalds, when the cops come in after MAC, Mike is getting pushed by them, as they try to pass, and he shouts "What's he done wrong." yet his mouth clearly says otherwise.

Continuity: When Eric following the wet footprints outside, to the edge of the lawn, the footprints change in appearance drastically, between shots.

Continuity: When MAC is blown by the helicopter, he lands on a man's windshield, and the man has to start dodging traffic. Between shots the traffic he is dodging changes.

Continuity: When Eric wheels himself outside in his wheelchair, to follow the footprints, as he exits the double doors, he goes down a ramp. Later, when his brother walks through the doors, the ramp has vanished.

Visible crew/equipment: When the MAC's emerge from the NASA craft in the lab, there a shot through the lab glass of the father MAC, with the reflection of a cameraman holding a camera in the glass.

Continuity: When Debbie's mum stops the car, as MAC speeds past them on a remote control car, she parks on the right side of the road. In the next shot her car is on the left, then back on the right.

Visible crew/equipment: A wire can briefly be seen on MAC, as he does the flips in the air, in McDonalds, in the teddy suit.

Visible crew/equipment: MAC is grabbing the electric fence, being blown backward by the helicopter. When he releases his grip, wires can be seen attached to his hands.

Continuity: When Eric and the others find the MACs' in the old mine, they give them drinks. The MAC by Eric then begins to stand up. Between shots a long strip of black bin liner appears over his legs.

Continuity: After offering MAC the drinks of water, Eric pulls the drink away from him twice.

Continuity: When we see the two holes drilled through the wall, by MAC, there is nothing above the holes being made, yet in all the following shots a large painting is above the holes.

Visible crew/equipment: When the man's car swerves out of control after MAC lands on his windshield, a pile-up occurs. In this scene, it can be seen that the drivers are either absent, or dummies.

Continuity: When Debbie is putting Mac, who is hidden in a teddy suit, into the back of her mum's car, as her and Eric leave to go to Brittany's birthday party, the car window changes from halfway rolled up, to fully rolled up between shots.

Visible crew/equipment: In the desert, after MAC communicates, he stands and points, and then Eric, Debbie and the others drive him away. However, in the shot where he stands and points, the outline of the puppeteers hand through the red shirt is very visible. It is also visible at other points as well.

Visible crew/equipment: In the pile up scene, due to MAC covering up a man's windshield, a huge truck swerves and flies over a car, only the big black ramp used for the stunt is rather visible.

Continuity: In the van chase scene, Mike is hanging out of the window trying to pick up Eric in his wheelchair, as they flee from the running cops. As Mike tries to pick up Eric, his sunglasses keep disappearing and reappearing.

Continuity: When the kids are dancing in the McDonalds parking lot, there's a girl in white with a red skirt, then a big gap on the right followed by a group of kids. With a change of angles, the gap is filled with people that have appeared out of nowhere.

Continuity: Escaping from the cops, Eric's on the road, dodging cars. A blue one smashes the back of a car and breaks its own fender and lights; but the damage is already done before the crash.

Continuity: When all the guys go with Mac to find his family in the mine, the collar on Mac's t-shirt keeps changing from very loose, to slightly loose, to really tight around the neck between shots.