Jamie Dornan and Dakota Johnson star in the film version of Fifty Shades of Grey
Firefighters have said they are anticipating an increase in call-outs with the release of Fifty Shades of Grey at the cinema.
London Fire Brigade (LFB) said it was "concerned" the 13 February release could lead to a "spike" in people being stuck or trapped in handcuffs or rings.
Since April it has attended 393 such incidents.
LFB said people should use "common sense" but always call 999 in a genuine emergency.
The film, based on the novel by EL James, has been described as a "mummy-porn romance" and follows an affair between student Anastasia Steele and billionaire Christian Grey.
Dave Brown from LFB said: "The Fifty Shades effect seems to spike handcuff incidents so we hope film-goers will use common sense and avoid leaving themselves red-faced.
