Revealing mistake: At the end of the film, when Tony crashes Tim's car at the driving test centre, you can see it has been changed for a wreck as just before he crashes there is damage to the front left hand side that wasn't there before.
Revealing mistake: When Mrs. Slenderparts is driving down the motorway the wrong way, the same shot of oncoming cars swerving to avoid her is used twice.
Revealing mistake: Early in the film when Truscott and Bender try and walk through the door at the same time the wall shakes.
Revealing mistake: When the Bentley crashes into the office at the driving test centre, if you look carefully over the barrels you can see the green Triumph Herald that Tim and Miss Adez destroyed during the opening sequence.
Revealing mistake: During the rugby match George Layton who plays Tony Bender seems to be wearing a wig as he can be seen adjusting it.
Revealing mistake: The white Datsun, that passes the Bentley during the car chase at the driving test centre, can be seen in the next shot parked in the background.
