"Spring in Park Lane (1948)" was the most popular film in the U.K. for the year 1948. According to the British Film Institute in 2004, it had fifth place in all-time ticket sales in the United Kingdom. As of 2017, its 20.5 million U.K. attendance was still the largest audience for any wholly British movie. It was highly rated and well received in the U.S. as well.
Came fifth in the UK's Ultimate Film, in which films were placed in order of how many seats they sold at cinemas
Richard, Uncle Joshua and Judy Howard are discussing a movie made about the French painter, Paul Gauguin. This was a fictional film based loosely on Gauguin's life - The Moon and Sixpence (1942). It was based on a 1919 novel of the same title by W. Somerset Maugham. In that film, George Sanders played Charles Strickland, whose life resembled Gauguin's.
The plane depicted as bringing Uncle Joshua back to London at Heathrow is a 1945 Avro Type 685 "York" C.1, registration G-AGNZ. It flew with the RAF in WWII and then BOAC, and in 1949 was acquired by Eagle Airways. It crashed after takeoff from Berlin in 1952 due to engine failure and was damaged beyond repair. 259 of all variants were built from 1943 to 1949.