Pride, film review: A rich seam of social history mined in heartwarming comedy

British cinema has two strains of exportable crowd-pleasing period drama. There is the sort in which people in bonnets and britches parade about in stately homes.

And then there are works set against a backdrop of more recent social history such as Billy Elliot, Brassed Off and now Pride, which is about an unlikely alliance that was formed between members of two oppressed groups in Thatcher’s Britain – striking Welsh miners and militant homosexuals – after the founding of the fundraising group Lesbians and Gays Support the Miners.

Matthew Warchus’s uproarious and heartwarming comedy has its share of stock images and characters, and has to fudge the truth of the matter slightly, in order to retain a happy ending when we know how unhappily the miners’ strike in fact ended.

And yet it rightly and joyously gets to celebrate things that are rarely found in films set in modern-day Britain, such as political idealism and activism, community spirit, political bookshops, and sympathetic trade-unionists. And it is all set, naturally, to records by Billy Bragg, Frankie Goes to Hollywood and Bronski Beat, who headlined the Pits and Perverts benefit gig – one of the film’s centrepieces.

The comedy comes from the simplest of juxtapositions – be that militant homosexuals from London in a working men’s club in the Valleys, or Welsh grannies in a gay bar in London – but the screenplay by playwright Stephen Beresford is well organised and full of tangy one-liners, while the large and talented ensemble cast make his characters seem rounded, real and loveable. So Pride belongs to that strain of British period cinema to be, well, proud of.