Goofs

When Marie is making pancakes, she picks up the syrup to pour on Dan's pancakes with her left hand and starts to pour, then in the next shot she is pouring with her right hand.

When Dan is talking to Cindy and Jim (the father and daughter that are going to syndicate his column), Mitch's chair next to Dan moves close so that Mitch's leg is touching Dan's and further away, then close, then far again to Dan's chair.

When Dan is searching for a knife to cut the pie, the pie is tall. When the camera cuts back to the pie, it is shorter.

During the end credits when everyone is dancing in a circle, Marie's strap on her dress is falling down on her arm, then it cuts to a different angle and the strap is magically back up on her shoulder.

Private property collisions are normally considered civil matters unless they involve serious injury, death, or impairment. While a minor crash, like Dan backing into the patrol car in the parking lot might require a report since it involves agency equipment, it most likely wouldn't result in a traffic citation and surrendering one's driver's license.

Dan's car, a Mercedes 300 turbo diesel, is shown filling up at an unleaded gas pump.

Dan stops for gas in New Jersey while he and the girls are driving up to the family's house. He is shown pumping gas. While it is against the law in New Jersey to pump your own gas, it is sometimes done and usually overlooked as an infraction by station staff.

Dan's guitar playing is not even attempted to be correct. His fingers just ramble over the fret board and no chords are close to being played.

When Dan drives his car, a diesel engine is heard, but when he starts it back up, it is a gas engine crank.

When Marie leaves Mitch (Dane Cook), you hear Dane's voice say: "Yeah, what does the expert have to say? Come on.". Dane nods but his lips don't move.

When Ruthie drops off everyone after the double date. The Mustang she drives has a V8 growl, but is actually a V6.

Earpiece visible in Mitch's ear while singing the "Piggy-nose" song which then disappears.

At the end the family is seen driving back from New England to New York City. Their car travels west over the Queensboro Bridge from Queens into Manhattan. It makes very little sense to enter Queens when coming from New England if traveling into Manhattan. The Triboro Bridge (now called the Robert F. Kennedy Bridge) from the Bronx to Queens can also be taken to Manhattan. Entering Queens would make the trip longer and cost an extra toll.

At the dinner table, when the topic of forgiving pasts comes up, the boom mic falls into the shot. John Mahoney even breaks character to look up at it.

Part of this was fixed in the later release (Amazon Prime version), you can see John look up to see something out of order, but not the boom.

The cop takes Dan's driver's license after his accident and then later Dan says he can no longer drive because he doesn't have a license. Although the police can take a license in lieu of a cash bond, they can not take away driving privileges. Driving while waiting for a court date by using the ticket as driver's identification. Typically only the state's DMV or a judge can revoke driving privileges.