The author of Paddington, Michael Bond, appears as a stamp
The director of the two previous films, Paul King, has decided not to direct this installment, but he pitched the idea for this third film and was involved as an executive producer.
In Paddington's attic is a picture of him and Queen Elizabeth II from when he met her in Queen Elizabeth and Paddington Bear Film (2022), originally shown as part of her 2022 Platinum Jubilee celebrations.
Rachel Zegler was initially set to play Gina Cabot in the film, but had to leave the project due to the 2023 SAG-AFTRA strike. She was replaced with newcomer Carla Tous.
Despite being titled Paddington in Peru, only the Cuzco and Machu Pichu sequences were shot in the country. Most of the tropical landscapes featured in the film were shot in Colombia. The Colombian Film Commission offers a tax incentives and access to film production services, talent and crew. As a result, 80% of the filming outside England took place in Colombia with the remaining 20% actually being shot in Peru. The film also featured Black Park, Buckinghamshire, just off Pinewood studios and Berrybush Farm to recreate the retired bears home. These production decisions caused an uproar in the Peru film industry and among fans of the previous films in the Andean country.