Corrected entry: When Phoebe goes to visit her birth mother in Montauk, her mom says "I wish someone would've been there to tell me how terrible it is to give up babies". The scene cuts to a shot of Phoebe holding the puppy, revealing a side view of a stand-in, not the actress playing her mom.
Corrected entry: Phoebe shows Ross' invitation to everyone, stating "Ross let Ben address mine." The envelope has poor kid like handwriting. The address is a 4 line address and the invitation also has stamps on it. When the camera comes back to Phoebe, she's holding an envelope with just her name on it, with no stamps. When she puts down the envelope by her side, the 4 line address is back. (00:11:30)
Corrected entry: Towards the end of the episode, when Chandler comes into the apartment to talk to Joey about his kiss with Kathy, Joey turns the TV off and places the remote on the counter. However, the TV is suddenly back on after Joey asks, "Is that why you bought all this stuff?" (referring to the furniture), and then Joey turns it off again manually. (00:17:10)
Corrected entry: In the scene where Joey tells Ross that the stripper stole the wedding ring, when Chandler says, "So you might say, it's a magic ring", you can see Joey starts laughing in the background. In the next shot he starts laughing again. (00:12:30)
Corrected entry: When the doctor is explaining to Phoebe about the triplets she says that "giving birth to three babies is not that different than giving birth to one". However, most triplets are born prematurely and by Caesarian section (which the doctor doesn't mention).
Corrected entry: One best man (Joey) walks down the aisle with the mother of the bride and the other (Chandler) comes in with Monica which is completely wrong. The best man (or men) should be at the front of the venue with the groom - they are there to support him.
Corrected entry: When Joey slides the gift for Kathy across the bar, you can see in the bathroom that a towel is hung over the shower curtain rod, however in the shot when Chandler is saying goodnight to Kathy, the towel is gone. No-one went into the bathroom.
Corrected entry: After Cathy gets off the phone with Joey, she puts the phone on the counter. A few shots later, when she starts to leave, the phone is on the receiver. After Cathy and Chandler kiss, the phone is back on the counter.