Trivia / Friends S 4 E 23 The One With Rosss Wedding Part One

• California Doubling: The only time the series averted this as all of the London scenes were actually shot in the city, either on location or in a local studio for interiors.
• Technology Marches On: Monica ensures she has her travellers' cheques, which nowadays are seldom used, not least because it is far easier to pay anywhere in the world with credit/debit cards than in the past.
• Written-In Infirmity: Phoebe can't go to London due to her pregnancy just as Lisa Kudrow couldn't go because of her real-life pregnancy. Kudrow ended up giving birth the day this episode (and the second part) aired.