: Due to budget and technical constraints, the same subway car set was used for every character's storyline. Crew members rocked the car with 2x4s to simulate movement.

: Julia Louis-Dreyfus was visibly pregnant during filming; she spent most of the episode carrying a large wedding gift to hide it. The SubwaySeinfeld : Season 3 Episode 13

Watch the gang's most frantic and bizarre subway moments here: Seinfeld's Subway Nightmares | The Subway | Seinfeld YouTube · Seinfeld : Due to budget and technical constraints, the

: Kramer's conversation about the horse "Papanick" ("His father was a mudder, his mother was a mudder") is a nod to a classic Abbott and Costello routine. The SubwaySeinfeld : Season 3 Episode 13