This film is part of Free
The Warning (Gibbs S.R. Toothpaste)
An amazingly complex cinema ad, disguised as a trailer for a film that never existed
Overview
Don’t you hate it when the trailer has all the best bits of the film? In this case it has the only bits, as the film it appears to advertise was never actually made. In this astonishingly elaborate cinema advert, the mysterious knife-throwing stranger is red herring; the real warning is tender gums as a sign of tooth decay. Look out for future Carry On star Charles Hawtrey on the piano.
Related
Rudge-Whitworth - Britain's Best Bicycle Rudge-Whitworth - Britain's Best Bicycle
Advert 1902 1 mins Silent
A gentleman cyclist learns the error of his ways in one of the earliest surviving British film advertisements.
Sam Goes Shopping Sam Goes Shopping
Advert 1939 6 mins
Stanley Holloway recounts the exploits of Sam Small, whose wife sends him shopping for... what was it again?
Sketchbook of Fashion (Knights Castile Advert) Sketchbook of Fashion (Knights Castile Advert)
Advert 1940 2 mins
The key word in the book of fashion is simplicity
Little Miss Muddlehead (Rinso Advert) Little Miss Muddlehead (Rinso Advert)
Advert 1943 2 mins
Use Rinso and help defeat Hitler! The soap brand deploys some savvy wartime advertising.
Close-ups of the Stars Close-ups of the Stars
Advert 1946 6 mins
A triple bill of glamour courtesy of Lux toilet soap.
Fable of the Fabrics Fable of the Fabrics
Advert 1942 6 mins
"Gee, old age!" Malicious Father Time doesn't stand a chance against a cartoon cupid armed with a big box of washing powder.
New Perspectives: La Haine New Perspectives: La Haine
Short documentary 2025 4 mins
Charlie Hammersley, a student from Northumbria University, explains how Mathieu Kassovitz's 1995 film holds up a mirror to society.
Dreamers Q&A Dreamers Q&A
Inside Film 2025 30 mins
The film-makers behind a haunting tale of love and community within a UK immigration detention centre visited the BFI Southbank to discuss their film.
Paul Thomas Anderson and Leonardo DiCaprio in Conversation Paul Thomas Anderson and Leonardo DiCaprio in Conversation
Inside Film 2025 50 mins
Paul Thomas Anderson and Leonardo DiCaprio in Conversation at BFI Southbank, discussing the making of One Battle After Another.
Laura Mulvey in Conversation Laura Mulvey in Conversation
Inside Film 2025 76 mins
Laura Mulvey in conversation, following her BFI Fellowship Award.
George Clooney in Conversation George Clooney in Conversation
Inside Film 2025 74 mins
George Clooney visited BFI Southbank to look back on his life and career.
Chloé Zhao Screen Talk | BFI London Film Festival 2025 Chloé Zhao Screen Talk | BFI London Film Festival 2025
Inside Film 2025 65 mins
The Oscar®- winning director of Nomadland discusses her unique approach to filmmaking and the inspiration behind the adaptation of Hamnet.