Doctor Who and other references
A few subtle references I spotted to Doctor Who -- Mr Curry is played by Peter Capaldi (the current Doctor in Doctor Who) who twice needs to use a telephone box (ref to the Tardis), and the inside of his house is like a 1960s house I thought (the decade Doctor Who started) while the Browns' house looks more modern.
Also a reference to Indiana Jones with Paddington sliding under the closing door, losing his hat, and then retrieving it from under the closing door.
And then the Mission Impossible ref as he climbs up the metal chimney using hand-held vacuum cleaners. As well as Millicent coming down from a window in the roof on wires. And she was involved with Tom Cruise for a while who starred in Mission Impossible.
There are probably other references to films/TV that I missed.