Confounding expectations from the first frames, Girlhood is the endearingly scrappy and staggeringly beautiful third film from French writer-director Céline Sciamma (Tomboy) and no relation to Boyhood. Intimate and exuberant, it's a coming-of-age story that takes us into the company and confidences of a quartet of teenage girls.

It’s a hostage to fortune really to create a play on one of the funniest books ever written, and a Victorian one at that. Still, Jerome K Jerome’s Three Men in a Boat is regularly mined for stage and small screen entertainment, and this version by Craig Gilbert turns out to be a diverting and enjoyable touring show for Britain’s small town theatres, for which hurray, and particularly so for towns on the Thames, where the boat hired by J, George and Harris is being ever so uncertainly steered.

Taking inspiration from classic westerns even as it vigorously sets itself apart, The Homesman combines the taciturn and muscular with a feminist bent, and manages to be stirring and sweeping while also embracing the odd. It's a gorgeous, painfully sad tale of a man who's been nothing but a disappointment to himself and a woman constantly disappointed by others who, together, shepherd three lost souls on a desperately treacherous journey.

Pretty in Pink featured an interesting example of female friendship between a teenager and a grown woman. A record shop owner imparts motherly advice to her employee while also getting to grips with her own identity. In a similar manner, Lynn Shelton’s indie comedy (which was written by YA author Andrea Siegel) pairs up Keira Knightley and Chloë Grace Moretz, but shifts the focus away from teen angst to tackle the quarter-life crisis from the point of view of a woman who decides she needs to find herself 10 years after graduating from high school

When Anthony (Mark Webber) proposes to Megan (Keira Knightley) due to nothing more than an overwhelming desire to fit in with the rest of their group of friends, he starts a chain reaction which leads Megan to seek refuge with erudite teen Annika (Chloë Grace Moretz). Sent into a tailspin at the prospect of getting married, Megan tells Anthony she needs to take a week-long retreat but instead ends up crashing at Annika’s place and reaching back to her youth. Megan in turn finds a new friend in Annika’s father Craig (Sam Rockwell, pictured below), to whom she openly admits all her worst secrets.

Megan runs away from her close-knit group of friends who are all either settling happily into married life or on their way there and , though Siegel does poke fun at the conveyor belt marriage, she is surprisingly generous with her supporting characters. Knightley's energetic performance is entirely endearing; she bounces around in a beautifully shot wedding scene - which boasts the backdrop of Chihuly Garden and Glass in Seattle - like Lewis Carroll's Alice learning all manner of shocking new things.

Knightley shows off her comic chops as the cynical and neurotic Megan and she’s really rather funny. Siegel has written a witty, charming character for her to have some fun with and at the same time explore female arrested development. Likewise, Moretz is given a role that allows her to flourish. The two have great chemistry together. Rockwell brings his usual charismatic flair to his turn as a single father and chatty divorce lawyer. Previously, Shelton has directed from her own shorter scripts, in films such as Humpday and Your Sister's Sister, and left her actors to improvise. This marks the first time she has worked from someone else’s script and its traditional structure results in some loss of her usual naturalistic style yet still allows her to craft convincingly intimate moments.

Despite sticking close to formula, Say When makes a refreshing alternative to the man-child shtick of Adam Sandler. The simple gender role reversal and an eccentric lead performance which doesn't rely on cheap gags only further highlight the desperate need to shake things up. Shelton and Siegel make a great writer/director team who skilfully blend mainstream comedy appeal with genuine warmth and prove to be a positive addition to the romantic comedy genre.

Overleaf: watch the trailer for Say When

Kicking off with an epic eight-and-a-half-minute-long tribute to New Jersey’s Palisades amusement Park and a lament to forgotten friendships, the Counting Crows seventh studio album intentionally invokes the spirit and sound of Seventies rock. The opening track has high aspirations with its triumphant horns, confident piano chords, shore setting and coming of age theme clearly paying homage to Bruce Springsteen’s early work, most obviously the Born to Run album.

This is a strange one. Precious little happens and, in some ways, little is said in David Storey's muted chamber play from 1970. Two men named Harry and Jack – getting on in years, but keeping up appearances in jackets and ties – linger on a patio that's skirted by grass and strewn with autumn leaves. The sun is shining softly. Low-level birdsong is just audible in Amelia Sears's strongly cast production, staged in-the-round in the Arcola's intimate studio space.

Former video artist Clio Barnard's second feature - which took Cannes 2013 by storm with its stark and striking humanity - takes inspiration and its title from the Oscar Wilde fairytale. However that's not the film's only, or most significant, influence: The Selfish Giant is, by its director's own admission, a response to the continuing, corrosive impact of Thatcherism, an ideology that put selfishness ahead of societal needs and pushed millions to the margins.

"What do you call a bachelorette party without a bride?" asks maid-of-honour Regan (Kirsten Dunst). "Friday," comes her fellow hen’s deadpan response. In Bachelorette the bridesmaids lose the bride, tear up her dress and get trashed; these are high-school mean girls all grown up and, hey, they're just as mean as ever. Bachelorette is the spunky, spiky, sweary debut of writer-director Leslye Headland and appropriately it feels like a woman's work, albeit a woman proudly in touch with her inner bi-atch.

"I'm so embarrassed, I'm not a real person yet," Frances apologetically tells her date after she's forced to make a calamitous cashpoint dash when they're asked to settle their restaurant bill. This is the seventh film from writer-director - and sometime Wes Anderson collaborator - Noah Baumbach (Greenberg, The Squid and the Whale). This time he co-writes with luminous star and indie-darling Greta Gerwig and it's a terrifically fruitful collaboration.

Returning from Germany to her native Romania, Alina is reunited with her childhood friend Voichita, now resident in a convent. The pair return to Voichita’s orthodox sanctuary but Alina changes. Aggressive, hearing voices and seemingly suicidal, she disrupts the convent. Eventually, she is exorcised. The tragic consequences result in the nuns, including Voichita, and their priest being taken away by police who think Alina may have been crucified.