When Jerry asks Elaine what room Testikoff is in she says 308. However, when the author opens the door it reads 507.
While George (Jason Alexander) is recounting his experience with the whale. When he says, "easy big fella," Elaine (Julia Louis-Dreyfus) has her arm resting on the table. Suddenly a second later her arm is upright.
George exits Jerry's bathroom and closes the door behind him, leaving it slightly ajar. After Kramer charges into Jerry's apartment to ask if anyone wants to go hit golf balls, the bathroom door is wide open. As the camera changes views, the bathroom door alternates between slightly open and wide open.
We see George (Jason Alexander) walking towards the water, but once he reaches it and starts wading in, the legs of his pants have suddenly been rolled up.
As Jerry and George are having coffee at Monk's the man behind Jerry arrives at his table, is served coffee, has his order taken then disappears leaving a cleared table - all within one minute.
When Jerry is at the ATM talking to himself. He says; 'receipt, no' and then pushes the button. But a receipt is printed out and he takes it out of the ATM.
No beached whale is visible when George walks into the ocean.
Even looking past the War and Peace prank, for someone who is handling a million-dollar project here, Elaine has zero cultural rapport with the Russian writer. For instance, she addresses him as "Mister Testikov" throughout. In reality, the Russian man - no matter how pugnacious his behavior in this story - would from their very first meeting onward insist that Elaine refer to him by the respectful combination of first name and patronym: Ivan Nikolayevich; Anton Vasilyevich, etc.