Continuity: Some of the people move around and change psoitions between shots in the background, when Lenny has people dealing drugs in Grace's office.

Continuity: When the drug dealers are in Grace's office, one of them knocks over her purse with his foot. In the next shot the purse is standing up again.

Continuity: The position of the red booster seat which the Cher doll sits on changes between shots.

Continuity: When Ellen says to Grace "Okay, what do you mean Will and You have never done it?" the red plastic cup she holds swaps hand three times between shots.

Revealing: At the party it is obvious none of the red plastic cups have drink in them.

Continuity: When the guy at Will's party tells everyone the beer has gone, everybody leaves, and the guy puts his plastic cup on the handle sticking out from the keg. In the next shot the cup has suddenly gone, then reappears again in the next.

Continuity: When Jack invites Pam over to their table to talk, the direction that the label on the champagne bottle faces changes between shots.

Continuity: When Will stops Grace, as they are about to have sex, they sit up in the bed, and he tells her he thinks they should wait. In the first shot Grace's black strap is falling off of her arm, yet in the next shot it's back up on her shoulder.

Continuity: In the scene in which Will is sitting in Bobbie Adler's bathroom, talking to Jack on the telephone, the shots alternate between the bathroom and Jack's bedroom. At the beginning of their conversation, the digital clock in Jack's bedroom reads 12:07. For the next few shots, each time the audience is taken back to Jack's bedroom, the time on the clock has changed according to the actual time lapsing in the scene. However, in the middle of this sequence, the digital clock suddenly reads 12:24, where it had read 12:09 in the shot immediately preceding. Finally, in the very next shot in Jack's bedroom, the clock has gone back to "real time," with a reading of 12:10. The assumption is that the shot in the middle of this sequence had to be re-done, thus reflecting the time passage on the clock.

Continuity: When Will phones Jack, while he hides in the bathroom, Jack puts a plate of chicken down and answers the telephone. Then through the following conversation they have the position of the fried chicken pieces on the plate differ.

Continuity: When Will tells Grace he's gay, the champagne bottle on the table keeps rotating.

Continuity: When Will tells Grace that he is gay, there is a tray of finger foods on the table next to him, as he kneels on the floor. In the second shot, the plate is covered in cling film, but in shots before and after, there was no cling film.

Visible crew/equipment: When Will and Grace walk past the old supermarket through the rain, near the end, the camera trolly is reflected in the shop windows, behind them, as they walk past.

Factual error: When Will and Grace bump into each other in the supermarket in 1986, more recent items and brand names can been seen in the fridges and on the shelves during the scene.

Revealing: Grace's boyfriend has six toes but in closeup shots, when he takes off both socks you can clearly see only five toes on each foot, when they are specifically trying to hide one foot.

Continuity: When Grace is in the toy shop, and is hiding in the ball pit from Mark, the colour of the balls around her changes.

Continuity: When Grace gets two bottles of beer for her and Mark, she sits down on the sofa with both bottles in her hands, yet in the very next shot one of the bottles has jumped into Mark’s hand.

Continuity: When Grace gets two bottles of beer out for her and Mark she removes the lids on the beer bottles. In the next shot the lids are back on both bottles.

Revealing: Grace has a present for Larry and Joe - a cement handprint decorated with twigs. She made it when she was twelve, and after a couple of decades the twigs in the cement are stick alive with healthy green leaves.

Continuity: When Will is sticking the white bow on the kayak present, the card is on the table. In the next shot it’s in his hand.