Continuity mistake: In the bathroom scene where Ian and the men's room predator are waiting, once inside, Ian grabs for the toilet paper and you can see the predator's pants are on. Next shot you see the predator standing naked, and his pants are hanging up. (01:13:05)
Factual error: There are several mistakes relating to the Youtube video from the abstinence talk. Firstly, the user joined two minutes ago, and has 11 videos already. Secondly, his one video has over 5.2 million views, in less than two minutes. (01:17:10)
Audio problem: Just before the girl chucks the lolly at Felicity, she says something along the line of "I would have..." but her mouth doesn't match what she is saying. (01:17:50)
Continuity mistake: When the GTO is racing the green car, the other cars around them change instantly and several times. (01:23:30)
Continuity mistake: Just before Ian hits the possum with the GTO, Felicia's bottle changes hands instantly. (01:23:45)
Factual error: When Ian throws the tyre iron and it goes through the cop's window, the window should at least have cracks in the glass. However it doesn't. (01:25:45)
Continuity mistake: When Rex catches up with Ian at the motel, Ian's shirt is undone. When Ian leaves to meet the girl off the net, his shirt is done up. (01:36:25)
Visible crew/equipment: When the camera is panning the GTO at the end, the camera can be seen in the chrome bumper. (01:55:15)
Continuity mistake: When the three of them are about to leave jail and Ian reads the message on his iPhone, the time says "August 14, 2008 10:02 PM". Later on, when Ian is in the car waiting for Ms_Tasty, the time says "12:02 Saturday, August 14". The date should be 15 August as it is after midnight (you can tell that this is late night/early morning as it is dark out and the time earlier was PM).
Factual error: When we see the impression from the radiator cap that shot into Ian's forehead, it says 'HOT'. Since the word 'HOT' was written correctly on the radiator cap, the word on his forehead should be backwards and read 'TOH', not 'HOT'.
Factual error: When Ian has the gun while he's in the doughnut suit, he manages to fire it. But the fingers are so big, there is no way it could possibly fit into the trigger guard to be able to pull the trigger.
Answer: LoJack.