- Deleted Scene: Originally, this episode made a reference to serial killer Gary Gilmore's last words. Just before Gilmore was executed he said, "Let's do it". The scene was changed during the final shooting of the episode, but appears in the deleted scenes on the DVD. When Jerry is trying to decide whether to buy the expensive jacket he says, "Well, in the immortal words of Gary Gilmore 'Let's do it'"
- Enforced Method Acting: Jerry and George's fear and discomfort of Elaine's father wasn't entirely acting. Lawrence Tierney was an incredibly intimidating presence on set, and his erratic and discomforting behaviour (including stealing a kitchen knife at one point) unsettled practically everyone.
- Playing Against Type: This was one of tough guy Lawrence Tierney's very few comedic roles. Granted, he's The Comically Serious.
- Reality Subtext: Everyone in the cast was genuinely afraid of Lawrence Tierney, especially after he stole one of the butcher knives from the set and pretended he was going to attack the real Jerry Seinfeld with it. When George suggests that he and Jerry outright tell Alton that they're leaving because he frightens them, it was as much Jason Alexander speaking as it was the character.
- What Could Have Been: Ryan Stiles auditioned for the salesman at the clothing store.
- Write Who You Know: Alton Benes was based on novelist Richard Yates, whose daughter Monica once dated Larry David.
Trivia / Seinfeld S 2 E 3 The Jacket