All For Mary (1955)

In a Swiss Alpine resort shortly after WWII an army officer (Nigel Patrick) and upper-class Humpy Miller (David Tomlinson) both set their sights on Mary (Jill Day), the landlord's daughter. When the two come down with chicken pox they are put in the charge of fellow guest Miss Cartwright (Kathleen Harrison), who turns out to be Humpy's old nanny. The two Englishmen unite not only against her tyranny but against a dense Greek (Leo McKern) who is also after Mary.