Factual error: All the Cisco VoIP phones seen in the film have the booting Cisco logo on them and would not work due to no connection.
Continuity mistake: When Jim Carrey is driving off to go jogging after an "all-nighter," he's saying goodbye to his friends in the car. The male nurse turns to see Jim. In the next shot, he turns to see him again.
Revealing mistake: When Carl and Allison are hugging in the barn scene, you can see how the rain making equipment is forming a rain ring on the ground outside the barn door.
Other mistake: When Jim Carrey runs out of gas, and takes his what appears to be either a one or two gallon gas can and fills it, the quantity dispensed shows 5.74 gallons.
Continuity mistake: When Pete calls Carl (about missing his engagement party) Carl picks up the phone in his hand and says, "Jesus Pete, I'm not in or I'm busy" and cancels the incoming call, and then places the phone on the arm of the couch. But in the following scene (after yelling at Saw) Pete walks in and Carl uses the excuse, "Oh I totally lost my phone" it magically appears in his pocket. (00:10:10 - 00:10:40)
Continuity mistake: After Norm, Carl, Allison and others finish watching Philosopher's Stone at the Potter party, it is about 8:00 pm (you can tell by the window behind them). But 2 hours and 40 minutes later they finish watching Chamber of Secrets and we see the window again. It still looks to be 8:00 pm, but it should be almost 11:00 pm.
Continuity mistake: After handing out oranges to the people in line at the bank, Carl goes into his office, approves a loan and then walks back out to talk to Norm. As the shot switches during their conversation, you will see the line of people appear and then suddenly disappear to be replaced with a Security guard talking to a woman.
Suggested correction: The line of people never disappears. The line is to the right of Norm, the man (not a security guard) talking to the woman is behind Norm, so it's not the same angle. The other group of people at the tellers would also not be visible from the angles seen. Also, Carl talks to Norm BEFORE approving the loan. After he approves the loan, he and Norm talk to the VP.
Continuity mistake: When Carl is at the yes seminar, there is one part where Carl's friend whispers yes, and Carl looks at him with confusion. In the next camera shot, Carl is looking down, at Terrence's microphone.
Continuity mistake: In the scene where Norman, Carl and Alison are talking at Norm's Harry Potter party, Alison is holding the goblet by the bottom from a side view. When it changes to a front Carl view, Alison is holding it by the top. This happens repeatedly throughout the scene.
Continuity mistake: After walking out of the yes seminar, a homeless guy asks for a ride to a park. As he is getting into the car, the door is slightly open. When it cuts to the next shot of the man asking to borrow Carl's phone, the door is suddenly wide open without anyone opening it. (00:20:40)
Audio problem: When Carl gets on Lee's Ducati and revs the engine, the sound heard is from an inline four cylinder engine, not a 1100cc L-twin Ducati Hypermotard.
Visible crew/equipment: When Carl is saving the guy from jumping, as he looks at the guitar you can see the reflection of a crew member on the black surface of the guitar.
Continuity mistake: When Carl is on his way out, the number of the door changes to number 5 instead of 6.
Visible crew/equipment: At the Griffith Observatory, there is a shot of Jim running along a trail. The camera tracks right of screen. At the bottom of the frame, the shadow of the crane is visible.
Continuity mistake: When Carl and Norm are talking to Wes, Carl's name tag is over his lapel. It then goes under the lapel and back over it in different shots.
Character mistake: When Carl answers the door to the LDS missionaries, they are not wearing their black name tags.
Other mistake: When Carl is in hospital after the accident with Terence's car, the time is mentioned as 5.40 am but the amount of light coming through the blinds would suggest that it is much later in the day.
Continuity mistake: Near the beginning of the film, Carl's car runs out of gas and as he is walking into the gas station, we can see the sign, including the gas prices. They are all around 5 dollars and 30 cents a gallon. However, later, when the girl arrives, a closer shot near the pump shows the price of gas to be 3 dollars and 30 cents a gallon.
Revealing mistake: When Jim Carrey is riding the Ducati towards the end of the movie, he keeps the clutch lever held in for most of the entire ride sequence.
Other mistake: When Carl is playing dance dance revolution in the bar, you can see that there are 0/2 credits in the game while he's playing.
