Fearlessly smart, honest and philosophical, Emanuel and the Truth About Fishes is the striking, sometimes breathtakingly beautiful second film from Italian-American writer-director Francesca Gregorini. It marries moments of sweeping surrealism with an earnest, credible exploration of female relationships.

The Eagles recorded their first two albums in London in the early Seventies, though they couldn't have imagined they'd be back 40 years later to present their new documentary, History of the Eagles Part One, at Sundance London. There is, as you may have surmised, also a Part Two, which is available in the DVD and Blu-ray package that goes on sale on Monday 29 April.

“In a world…” How many times have we heard this portentous introduction to a movie trailer, in a reverberating baritone whose seriousness is in stark contrast to the epic fluff it seeks to promote. Director/writer/star Lake Bell’s oddball and hugely likeable comedy makes up for some of the pain we’ve had to endure through such promos, by taking a peep into the world of the voice-over artists, whose finely-honed vocals are responsible.

It may not be Scorsese and De Niro, but the partnership between Michael Winterbottom and Steve Coogan has been extremely fruitful. It has given us Coogan’s sublime portrayal of legendary music promoter Tony Wilson in 24 Hour Party People, a triple role as that great literary waffler Tristram Shandy, Tristram’s dad, and as himself playing them in the dazzlingly post-modern A Cock and Bull Story, and again as the worst public image of himself in the television series The Trip.

I’ve always thought of Lynn Shelton as Sundance royalty. Her breakthrough film Humpday – the über-buddy movie with the amateur porn twist – screened at the festival, as did her follow-up, Your Sister’s Sister, which demonstrated that Shelton could handle more mainstream comedy-drama without losing her indie spontaneity.

Unburdened by conventional narrative sense, Upstream Color is a true curiosity. Seductively strange, woozily kinetic and above all romantic, Shane Carruth's second feature is a little film with big, bizarre ideas. Incorporating pig farming, scientific experimentation and sound recording, it proves that you don't need a sizeable production budget to swoop and soar on the big screen, and that you don't always need to know precisely what's going on to be immersed in a story.

Bringing some much needed sunshine streaming into what has, so far, been a hit and miss spring is this year's Sundance London, which takes place from 25 - 28 April at The O2. Sundance is, of course, a name most associated with Robert Redford, President and Founder of the Sundance Institute which supports fledgling filmmakers and runs the Utah-based festival. This will be the second year the festival has headed on over to bring us the pinnacle of American independent cinema, and this year its US indie gems are accompanied by several sterling UK efforts.