SCENES in the movie Under The Skin, filmed in Glasgow, required a voluptuous Scarlett Johansson to pretend to fall over and be helped up by passers-by.
There was no shortage of gentlemanly assistance.
Cinema history might have been different if other films had been made with the aid of the Glasgow public.
As Martin Scorsese directs violent scenes in Gangs Of New York, an extra drawn from the ranks of the Mad Mental Young Fleet asks: "Call that a knife, pal?"
In When Harry Met Sally, the girls at the next table say they'll have what she's having, with a poke of chips. In Casablanca, Ingrid Bergman is told she'll always have Possil.
At Partick subway station, as Marilyn Monroe is getting wind up her skirt for the scene in The Seven Year Itch, a local lady warns: "Hen, you're showing next week's washing."
In It's A Wonderful Life, where the till rings in the bar, a record number of angels are created as Glaswegians rush to get in a last drink.
In Gone With The Wind, Vivien Leigh surveys the ruins of the city and goes home to think about it tomorrow in Castlemilk where she has awfy good neighbours.
Some films have unexpected outcomes. 12 Angry Men ends early with a Not Proven verdict.
In Psycho, the room in the B&B doesn't have a shower. In Brief Encounter the couple leave the railway buffet and go up a close for a winch.
In The Railway Children, on a stretch of line between Darnley and Barrhead, Jenny Agutter keeps on her red petticoat and attracts the train driver's attention by chucking a half-brick.
In The Elephant Man there is a happy ending as John Hurt gets a lumber at the Locarno.
Meanwhile, in Edinburgh, filming of A Streetcar Named Desire is cancelled because there are no trams.