Hollywood has never met a cliché it didn’t love; unfortunately, neither has Dylan Costello. His peek behind the curtain of Tinseltown’s Golden Age employs every stock type imaginable, from the boorish, chain-smoking manager to a pill-popping Marilyn-lite. It’s a play with admirable aims, but desperately in need of a good script doctor.

Sometimes, nothing can prevent love blossoming. Sebastian’s second encounter with Andreas is punctuated by the latter vomiting after too much booze. It doesn’t put the brakes on the former’s growing passion for the leather-jacketed object of his affections. Soon, the pair are lovers despite Andreas declaring that he is not gay. He cannot resist Sebastian.

There’s an engaging, indie sense of emotional flux in writer-director Desiree Akhavan’s feature debut Appropriate Behaviour, and a very funny script indeed behind it. Akhavan herself plays Shirin, daughter of a traditional Iranian-American emigre family, who may define herself as bisexual but whose heart seems to be telling her she’s gay: she’s both distraught and angry after the film’s opening scene break-up with girlfriend Maxine (Rebecca Henderson, cooler and much more self-aware).

For many the story of Welsh rugby star Gareth Thomas will be familiar. It has been told in many forms, and powerful and inspirational as it is, many times too. Thomas (known to all bar his mam as “Alfie”) is now not just a totemic figure in the sport he graced for 16 years, but a symbol of courage and hope for the LGBT community and indeed anyone who has at some point in their lives felt the walls closing in.

Ben (John Lithgow) and George (Alfred Molina) are two lucky people. They work in New York City where Ben paints and George teaches music. After they marry, the church school where George works fires him for being openly gay. Their life has come apart with the loss of one income. The couple must sell their co-operative flat and live apart - Ben with Elliot, his nephew (a convincing Darren E Burrows) and George with a couple of groovy gay cops (Cheyenne Jackson and Manny Perez) one floor below their old flat.

It doesn’t take many cucumbers smacked into cupped male palms to realise this isn’t, surprisingly, a show about salad. Russell T Davies has written three new series (Banana shows on E4, and Tofu online), exploring LGBT sexuality today. Queer As Folk, Davies’s 1999 breakthrough creation depicting the lives of three gay men living around Canal Street in Manchester, was an important landmark in dramatic depictions of gay life.

Remembering the early years of social and sexual liberation in Swiss gay life, Stefan Haupt’s drama-documentary The Circle (Der Kreis) has rich affection for its subject. In particular, that’s the relationship between teacher Ernst Ostertag and drag artist Robi Rapp, who first met in the Fifties and have been partners ever since. Both now in their eighties, their documentary remembrances of the time are intercut with staged dramatic material concerning Haupt’s wider subject, the world that grew up around the magazine, social centre and club of the film’s title.

Eastern Boys is a disturbing film. Robin Campillo’s second feature as director catches the often aggressive world of immigrant grifters in Paris – they’re a gang of young men largely from the former Soviet Union – and their interaction with the society that surrounds them, through prostitution and crime. The issue of prostitution itself is given a complex nuance in the film’s central relationship, where control and care, exploitation and protection become uneasily mixed up, before the film’s closing third moves into thriller mode.

There is nothing erotic or titillating about The Institute of Sexology, an exhibition the Wellcome Collection plans to keep open for a year. Those expecting a display of fertility symbols, fetish objects, kinky clothing or sex aids down the ages will be deeply disappointed. Just about enough objects and images are included to keep you interested, but the bulk of the show is not dedicated to sexual practices but to the 19th- and 20th-century doctors, anthropologists and psychologists who spent their lives studying sexual behaviour. 

“He should be on banknotes.” Benedict Cumberbatch has spoken of his character, real-life hero Alan Turing, as if he knew him. Turing, who died in 1954, was the father of computing and, more importantly, a secret WWII hero as told in The Imitation Game.