charlie chaplin 's divorce papers lay bare the film star 's ` cruel and inhumane ' treatment of his teenage bride during their short-lived .
on the pairs wedding night chaplin was also said to have confided in friends that the union was a better prospect than prison .
an original copy of the couples 50-page divorce papers was set to fetch an estimated £ 15,000 when it goes under the hammer , after being found in america .