When Rachel and Amy are fighting, Chandler takes the box of China and sits it on the chair behind them before lecturing them. The box is closed. In the next shot, the box is open.
When Rachel introduces Amy to everybody, napkins are on the plates, but in the next shot, nothing is on them.
During Rachel and Amy argument the door behind Amy is slightly ajar when first seen and is wide open in the next shot and again is ajar in the next shot.
The arguments in this episode are about who would be Emma's legal guardian, not who would be her godparent, so the fact that Chandler is Ben's godfather is immaterial. 'Godparent' has no legal meaning in terms of custody, whether the parents are alive or not.
During Rachel and Amy's fight, Joey can be seen mouthing along with Phoebe during her line, "Shouldn't we stop this?"
Just before the China plate gets broken during the fight between Rachel and Amy, Jennifer Aniston can be seen looking behind her to see where the plate is positioned on the table.
When Monica goes to leave the apartment to get the pie, a random set window is seen to the left of the door.
When Chandler knocks the box of china plates over, the plates are already broken into pieces before they hit the floor. However, after the China plate gets broken during the fight between Rachel and Amy, Chandler slams the box of plates down onto a chair. It's possible the plates got broken then.
As with all the work-centered story lines concerning Joey playing Dr. Drake Ramoray on "Days Of Our Lives", that soap opera films in California, yet Joey and his friends are living in NYC.
Joey says the rest of the cast of 'Days Of Our Lives' got to meet Santa Claus, from what we can assume he believes in him. However, on 'The One Where Phoebe hates PBS', Joey tells Phoebe that Santa doesn't exist.
As Rachel's sister comes out from the back of Ross's apartment to say that she has been dumped by her boyfriend, you can clearly see a studio microphone at the top of the screen as she walks towards the sofa to sit down.
When Joey asks Phoebe to give him a lie he can use for not being in the DOOL parade in Muskogee, Phoebe tells him he stinks at lying. Previous episodes prove Joey is a good liar, like "Ken Adams" and the backpacking in Europe story.
Joey and Chandler are watching the Thanksgiving Day Parade on TV when the announcer says, "Next up is a marching band from Muskogee, Oklahoma..." When Chandler hears this he gets excited and says "Muskogee! That's like 4 hours from Tulsa!". In reality Muskogee is only a 40 to 50 minute drive from Tulsa.