Corrected entry: When George Clooney answers the phone (while Monica and Rachel are pretending to be each other), he starts handing the phone to Rachel, saying "Rachel, it's your dad", but should be passing it to Monica (as he thinks her name's Rachel). The angle then changes, and now he's handing it to Monica.
Corrected entry: In the one where Joey and Chandler buy a foosball table, Monica and Ross come over to play. The score as the blue team and are on the right hand side of the table. When the credits are rolling, Monica is playing against Joey and Chandler again. She is on the left hand side of the table but scores as the blue team again.
Corrected entry: During one of the Las Vegas episodes Phoebe insinuates that she has been married in Vegas before. We know she divorced Duncan, the gay ice dancer, but we never hear mention of her divorcing this mystery man she supposedly married in Vegas. In season 10 she marries Mike Hannigan, so this would be an illegal marriage and make Pheebs a bigamist.
Corrected entry: When Paul enters his bedroom and Ross is behind the door, Ross hesitates and then snakes under the bed while Paul is distracted. However, Paul is looking at the mirror in the corner, which faces back towards the door, so he should have seen Ross standing there.
Corrected entry: In the final episode, Monica and Chandler take home the twins almost immediately after Erica has them. No hospital in the United States would ever allow newborn babies to go home the day they are born. Even the most healthy babies are required to stay at least 24 hours at the hospital.
Corrected entry: Fair enough that in TOW The Flashback Rachel doesn't remember Chandler if she had just met him at the Geller's Thanksgiving years ago, but this episode reveals she was at a party with him and even kissed him. Ok, she was drunk when she kissed him but she would still remember the party, and surely she'd remember the guy who was the reason her friend Monica lost all that weight.
Corrected entry: This episode takes place one year before the pilot (Rachel was supposed to get married in one year in the flashback and the pilot started on the day of her wedding). But in this episode, Ross finds out that Carol is a lesbian. However, not until the 2nd or 3rd episode does he find out she's pregnant. For this to make sense, either she had a really long pregnancy or else they continued sleeping together for a year after she came out (not likely).
Corrected entry: In "The One With The Secret Closet," the whole show is about Monica's secret closet (the one near the bathroom), why she keeps the door locked and how Chandler wants to find out what's in there. However, in "The One with the Dozen Lasagnas," the door is open and the closet reveals nothing more than clothes and other regular stuff you put in a closet. Also in the one where Phoebe and Rachel are looking for Christmas presents Rachel says she'll go and check the back closet, the one next to the bathroom.
Corrected entry: In the scene where Joey is using his fingers to "talk to Ross as his future baby might", the camera switches between Ross and Joey many times. Just before Joey says "What is a lesbian?", you can see that Joey was laughing, but finally covered it up before delivering his line. (00:03:00)
Corrected entry: At the end of the episode, when Ross finds the red sweater, he says that he has been looking for it for a month. If he could not find it after his night with Rachel then he would at least know it was in her apartment and not need to look for it. If he really had been looking for a month then the sweater meant enough to him that he surely would have asked where it had been found.
Corrected entry: In the scene where Rachel is on the plane telling the guy across the aisle about the history of her and Ross, the guy sitting beside her interrupts and says something like, "You are a horrible horrible person". If you look at his watch throughout the scene, it switches from having a leather strap (brown or black), to having a metal band, and then back again.
Corrected entry: When Monica is filling out Rachel's medical information, she has to change the name on the form so Rachel can use her insurance. You can see that she has a pencil in her hand. However, she goes up to the desk to get a new form. It makes no sense that she would arouse suspicion when all she had to do was erase Rachel's name and put hers.
Corrected entry: At the museum, the girls learn there is a two-year waiting list for weddings. But when there is a cancellation, Monica is called about filling the spot. If there was a cancellation, wouldn't the next person on the list be called? Even if they weren't interested, there would be two years worth of couple ahead of Monica and Chandler.