Hong Kong retro film moment: from Dick Emery to 最佳拍檔

The stories are different enough that one could not accuse the Hong Kong film-makers of outright copying, but there is clear inspiration between the English Ooh, You Are Awful (or Get Charlie Tully), starring Dick Emery, and the first of the successful franchise 最佳拍檔 (Aces Go Places). The films are 10 years apart.
   The plot lines are similar: in the original, Emery has to find a Swiss bank account number, separately tattooed on four different girls’ behinds. In the later film, Sam Hui (the father of Canto-pop) and Karl Maka’s characters have to find a map reference, tattooed on two different girls’ behinds. The following is of two very similar scenes, one set at Waterloo Station in London, the other at a taxi company’s radio department, and subsequent scenes involving photographic booths, where one might be able to claim there was a fair amount of direct copying. Emery is more blue, while the later film is more slapstick with better pacing.
   And yes, that is the lovely Cheryl Kennedy in the first clip.
   In the 1970s and 1980s, it was highly unlikely for Hong Kong cinemagoers to have seen the Emery film.
   Head to 2.45 for the above scene in the first video; 0.43 in the second clip.