Sir John Mills, who died on Saturday aged 97, was one of Britain's leading screen actors, especially in the years following the Second World War; versatile and accomplished, he specialised in playing "decent blokes", the epitome of the most admirable kind of Englishman - restrained, determined, honourable, good-humoured and capable of suffering on a heroic scale under fire. Yet Mills had begun as a song and dance man, with no ambition to enter the cinema. A talented rather than a mesmerising performer, with pleasant rather than overwhelming looks, he succeeded through a combination of hard work, brass nerve and good...