The Grass Is Greener is a 1960 British romantic comedy film directed by Stanley Donen and starring Cary Grant, Deborah Kerr, Robert Mitchum, and Jean Simmons. The screenplay was adapted by Hugh Williams and Margaret Vyner from the play of the same name which they had written and found success with in London's West End. Plot Victor and Hilary, the Earl and Countess of Rhyall, are dealing with the financial difficulties of owning a large English country house and estate in twentieth century Britain when inheritance taxes have taken a toll on their financial situation. Like many other such estates, they have opened up their house for guided tours for the public at two shillings and sixpence per person. Charles Delacro ignores a large "Private" sign on the door and barges into the private quarters, finding Hilary. At first annoyed, her behaviour is transformed when he introduces himself and mentions that he is a millionaire American oil tycoon. While making conversation about the house, and despite knowing that she is married, he makes very clear his attraction to her and his intentions towards her. In fact, his attraction to her is reciprocated, but Hilary is clearly discomfited by realising that Charles knows this. Charles invites her to visit him at the Savoy hotel in London where he is staying, making no pretensions about the fact that he is asking her to have an affair with him. When Victor suddenly enters the room, he notices his wife's attitude, and treats Charles with exaggerated courtesy. That evening, Hilary makes an appointment with her hairdresser in London for early next day, explaining to Victor that she will have to stay overnight with their friend Hattie Durant. Rather than behave jealously, Victor tells her the times of the trains she can catch and affects not to know the real reason for her trip. Meanwhile, Charles has tracked down Hilary’s hairdresser and appointment, and next day he is outside waiting when she leaves. They go back to Charles’ hotel room and into the bedroom. Next day, Hilary does not return home, but Hattie does arrive, an ex-girlfriend of Victor's who still carries a torch for him, and she tells him about Hilary and Charles’ affair. Victor phones his hotel to ask Charles to visit and he accepts, against Hilary’s wishes, and even offers to give her a lift back from London. When they arrive next