What fictional movie is repeatedly mentioned in the Seinfeld episode 'The Movie'?

The fictional movie repeatedly mentioned in Seinfeld's episode “The Movie” is “Rochelle, Rochelle.”

The episode follows Jerry, George, Elaine, and Kramer as they repeatedly miss one another while trying to attend a film. The movie they initially plan to see is CheckMate, but the characters keep getting separated by conflicting schedules, misplaced tickets, food runs, and misunderstandings inside the theater.

Rochelle, Rochelle appears in a trailer that catches Jerry's attention. It is described as an erotic film about “a young girl's strange, erotic journey from Milan to Minsk.” George and Elaine eventually end up watching it, while Jerry later joins them after his own string of delays.

The fictional title became a recurring joke in the Seinfeld universe. George later rents Rochelle, Rochelle in “The Smelly Car,” and the film is adapted into a Broadway musical starring Bette Midler in “The Understudy.” The phrase “from Milan to Minsk” therefore became more recognizable than the invented movie's supposed plot.