Styled as a breaking news clip, Rippon says Santa has been spotted in London "not with an elf but with a bear". The end of the teaser shows Paddington Bear running across a roof.
Campaign revealed exclusively last week that Paddington Bear would star in M&S' Christmas campaign. It has been created by Grey London, which picked up the account last year.
The ad coincides with the launch of the second Paddington film, Paddington 2, which is out in the UK on 10 November.
This article first appeared on PRWeek sister title Campaign