Actresses Rosalie Franson, Estelle Essex and Annabelle Lancaster as the Three Little Pigs in a production of “Monte Carlo Follies” at the Grosvenor House Hotel, London, 1934. (Photo by Sasha)

Pickets at Grunwick photo-processing Laboratory in Willesden, London, wearing pig masks and toy policemen's hats, July 1977. (Photo by Graham Morris/Evening Standard)

American actress Louise Fazenda (1899–1962) in a scene from Mack Sennett's Keystone production of “Down on the Farm”, circa 1920. (Photo by Hulton Archive)

A 40-foot long inflatable pig suspended between two of the chimneys at Battersea Power Station, London, during a photoshoot for the cover of Pink Floyd's album “Animals”, 6th November 1976. (Photo by Keystone)

Horse racing commentator Joanne Mathews takes a break from the horses and has some fun with a local pig. 22nd March 1956. (Photo by John Pratt/Keystone Features)

James Hall and Colleen Moore (1900–1988) star in the film “Smiling Irish Eyes”, circa 1929. This is Colleen's first talking picture. (Photo by Hulton Archive)