As coital pleasures replace a date-night dinner, smart snark supersedes sincerity in the unambiguously titled Friends With Benefits. Director Will Gluck moves from the sex games of a quick-witted teen (Easy A) to twenty-somethings teetering on the edge of friendship and love. More charming in actions than in words, the film is kick-started by peppy New York recruiter Jamie (Mila Kunis) as she strikes up a fiery camaraderie with web-savvy Los Angelean Dylan, whom she’s head-hunted for the role of art director at GQ. Take the Sex and the City lifestyle, subtract the dating games and you’ve got a Harry and Sally for the internet meme generation.

In lieu of unpredictable plot twists, Gluck whips up every metropolitan delight from hot dogs on the roof to flash mobs at Grand Central. Reviving the authentic New York for an LA audience with a cheek full of tongue, its self-aware wisecracks on all but absent rom-com cliches give way to flashes of sincerity. A few round-about justifications must be made as it ridicules the same cutesy clichés that it perpetuates, like making fun of Nicholas Sparks romanticism as it attempts to emulate its biggest gestures without losing considerable street cred. But when self-awareness meets caricature, a pinch of irony goes a long way.

Timberlake’s hapless yet agreeable commitment-phobe is far outshone by Kunis’ self- deprecating charm in this tangled web of limbs and emotions. Their personal quirks are backed up with family background as they duck an weave around relationship territory, but ultimately, it’s too smart for its own good. Over-selling fringe characters like Emma Stone’s John Mayer-obsessed ex and a cameo from snowboarder Sean White, the film hints at past lives that cost a hefty suspension of disbelief. However, bringing fun set-pieces of video-gaming parties, work photo-shoots and flash mobs into an otherwise typical existence allow its elements of satire and send-up to jibe without judgement.

Though it knows itself all too well, Friends With Benefits has canny appeal, making it the oddly enticing summer rom-com of the year.

Friends With Benefits is released in UK cinemas on Friday 9 September.

Having endured a summer of messiah wizards, robot romps and all-American superheroes, and with another long, cold vampiric winter ahead, a new beast from the north has arrived to break up the monotony. This is the autumn of the troll. Smashing through the vampire, werewolf and zombie stranglehold on the multiplexes, Norwegian director André Øvredal brings some of his homeland’s medieval mythology to the big screen with Troll Hunter. It’s The Blair Witch Project meets Cloverfield meets… The Three Billy Goats Gruff.

Breaking out of the icy north with a hilarious trailer and on target to bring in a mean cult following, we caught up with Øvredal, a director on his way to the big time, at this year’s Edinburgh International Film Festival, where his film had its UK premiere and thrilled three sold-out audiences. Already the talk of the fest before its first screening, trolls appear to be capturing film-goers’ imaginations, just as they captured Øvredal’s. “I grew up with films in the 80s, with Spielberg and so on, and I wanted to make a very Norwegian version of that with a very tough central character. Not an American movie hero, but a much more down-to-earth, very realistic Norwegian guy who has this amazing thing that he needs to do.” Sound familiar? With raw talent and an excitable imagination, Øvredal is already tipped for bigger Hollywood productions. But what about the trolls? “I always loved the trolls, and I found that [the people of Norway] had kind of lost touch with them – they’re such a big part of our cultural heritage and they’re not really utilised in any particular way. So I figured that was a great contrast, to have a guy who is an ordinary worker for the government and what he’s doing is actually fighting to make sure that these trolls stay in their reserves.”

Using meta-monster found footage – mockumentary style – Øvredal’s film shows how a group of student filmmakers find their way into a well-guarded government secret. The suspicious deaths of a number of bears lead them into the murky underworld of troll hunting, where a disgruntled government lackey shows them his overworked, underpaid, extremely hazardous working life. Tasked with keeping massive mythical beasts within their territory, our amateur documentarians uncover more than they bargained for. Pointing out idiosyncrasies and questioning ignorant workers along the way, it’s as funny as it is inventive. “I think that the format of mockumentary helps insist on the reality of everything, and then it becomes more absurd,” says Øvredal. “It also makes it possible to talk directly about trolls and take them seriously. Everybody’s seen documentaries and things from a news segment, it’s a language we know – somebody talking very seriously about a topic – and when the topic is obviously not serious, it can become funnier.”

Working with a low budget also kept the creative juices flowing. Øvredal’s clear Spielberg influences appear to have been held at bay, affording him the kind of creativity a break-out debut needs. “We can’t do Jurassic Park in Norway – it’s going to be too expensive – so that was a way of hiding the trolls when we needed to. Also, that required me again to build lots of suspense and use other entertaining values, rather than actually showing the trolls on screen all the time.” Shooting in mock-documentary style also allows Øvredal to invent much of his own lore to keep the troll stories interesting and fresh – do power lines really double up as troll electric fence perimeters?

Expectations for this debut are high and there’s already an American remake in the works, so how long will we have to survive the trolls? “Having the Troll Survival Guide [a pamphlet handed out at each screening], I guess I could do it forever!” We’ll have to wait and find out if the box office says the same.

Troll Hunter is released in UK cinemas on Friday 9 September. You can hear my review on the BBC Movie Café on Thursday 8.

As I may have mentioned a few times previous, I’m a huge fan of silent comedies, particularly those of Charlie Chaplin and Buster Keaton.

So when Park Circus sent word that they’re releasing a DVD box set of Chaplin’s features, I held my breath. And held it. And held it. Until I realised that I might not last until Tuesday 14 November, which is when this box of goodies hits the shelves.

After Park Circus launched their Chaplin collection of DVDs and BluRays, I vowed to collect them all. Now that they’re available in this jaunty little package I can’t wait to get my hands on them. While most are available individually, A King in New York, Monsieur Verdoux and A Woman of Paris are new to the collection. So who wants to buy them for my Christmas?

While we’re on the subject, I wanted to share with you a few of my favourite Tumblrs devoted to silent comedy stars. This begins, of course, with the ubiquitous Tumblr set up: Fuck Yeah Chaplin and Fuck Yeah Buster Keaton. I also love Chaplin in Pictures, Chaplin of the Ages and, more generally, Old Hollywood. Enjoy!

Which filmmaker would you most like to see immortalised in a big fat DVD collection?

Read more: Charlie Chaplin and Buster Keaton‘s autobiographies, reviewed. Notes on The General and Limelight.