10+ Mistakes In 'Seinfeld' That Are So Bad You'll Never Stop Looking

In the finale, the gang pulls up to the airstrip in a limo to their private jet, but the plane they are later shown on is completely different.

Maybe they swapped planes due to phalange failure...

In season 4 when Marla and Jerry are making out in his living room you can see someone walk past the window.

But...Jerry lives on the 5th floor of his building...

Speaking of what floor Jerry lives on, it changed several times over season 1.

First, it was on the 4th floor, then 3A then 5A for the rest of the show.

During "The Dinner Party" in season 5 the cookie Jerry is eating changes between shots.

During season 3 George lays on the floor in his underwear next to a newspaper.

It magically moves to his other side between shots.

When Morty gives Jerry directions to a scuba diving site, the pen in his hand keeps jumping from the table to his hand and back between shots.

Near the end of "The Calzone", George is carrying a paper bag.

In the next shot, he is carrying a box with the paper bag on top and later the box disappears.

During season 3 Jerry is being lectured by the ironically named Bookman.

He moves a navy blue book in front of a pink book. As soon as the camera cuts away, the pink book is in front and the navy blue book has disappeared.

Elaine searches for Jean-Paul and has a flashback to him saying, "I trust Elaine, she is my friend."

Only he said this to Jerry earlier when Elaine was absent.

George opens his briefcase on a conference table.

In the next shot, it is closed. For the rest of the scene, it is open again.

Newman's apartment number is 5E in all appearances except once in late season 6 where it is 5F.

One season later when Elaine and Kramer are in Newman's apartment, he is wearing a wedding ring.

The camera cuts away and it disappears.

Jerry shows off his umbrella twirling skills to George.

The umbrella is red and yellow but when Kramer sits on it by accident it's black.

Season 4 finds Elaine and Jerry on the same plane with Jerry in first class and Elaine in coach.

The plane they are on is shown to be from Southwest Airlines who do not have a first class cabin.