Night Club is a film made by Jonathan Hodgson in 1983 while studying at the Royal College of Art; a clip can be seen online here.
The film later served as the basis for this Marksman Lager advert made at Practical Pictures, a studio that Hodgson founded with Sue Young. The ad is rather more cheery and comical than the orignal short.
"Fancy another pint of Marksman?"
"Now you're talking!"