As Anna was about to be introduced to King Mongkut""s many children ("the royal princes and princesses"), she stressed how she might be leaving: "If there is to be no house, I shall have o get back to the boat before it sails," but he ignored her threat and imperiously commanded her to meet his royal children.The screenplay, co-written by director Frank Capra (uncredited) and Robert Riskin, was based on an August 1933Cosmopolitanmagazine story titled "Night Bus" by Samuel Hopkins Adams.The highly-acclaimed Williams had many of his plays adapted for the screen in the 1950s:A Streetcar Named Desire (1951),Cat on a Hot Tin Roof (1958), andSuddenly Last Summer (1959)).His hideous screams were heard by Rob, camping in a tent nearby, who grabbed his machete and went out to investigate.