Many of the puppies found happy homes with many of the trainers. Most were returned to the breeders once they were too old to use for filming, and the breeders sold them off with special papers, noting that the puppy took a part in the filming of this movie.
Just before Kevin and Chloe leave the house for their dinner date, the music that plays from the video the dogs are watching is the overture "Love Is A Song" from Bambi. When the television screen is shown later, however, the dogs are watching Lady and the Tramp.
As the Orient Express pulled out of the station the steam locomotive pulling the train was 4472 "Flying Scotsman" (A3 4-6-2): later at speed the locomotive had turned into "Camelot" (Standard Class 5 4-6-0), whose number would have been 73082, though it may not be visible.