imagine...

Following in the footsteps of Alan Yentob's 2008 profile of Jay-Z, imagine... presents the much-heralded Beyoncé: Life Is But a Dream. With Beyoncé herself in the director's chair, this unique and confessional film combines spectacular showpieces and video diary footage, giving a revealing insight into the life of the 16-time Grammy Award-winning singer, songwriter, actress, entrepreneur, wife and mother. This is Beyoncé, by Beyoncé.

To mark David Bowie's comeback album and a new exhibition at the V&A, Alan Yentob looks back at his legendary 1975 documentary, Cracked Actor. The film follows Bowie during the Diamond Dogs tour of 1974.

Alan Yentob says "I'd caught him at what was an intensely creative time, but it was also physically and emotionally gruelling. Our encounters tended to take place in hotel rooms in the early hours of the morning or in snatched conversations in the back of limousines. He was fragile and exhausted, but also prepared to open up and talk in a way he had never really done before."

Cracked Actor has become one of the classic rock documentaries of all time, remaining an enduring influence on generations of Bowie fans.

The incredible story of a mysterious nanny who died in 2009 leaving behind a secret hoard - thousands of stunning photographs. Never seen in her lifetime, they were found by chance in a Chicago storage locker and auctioned off cheaply.

Now Vivian Maier has gone viral and her magical pictures sell for thousands of dollars. Vivian was a tough street photographer, a secret poet of suburbia. In life she was a recluse, a hoarder, spinning tall tales about her French roots. Presented by Alan Yentob, the film includes stories from those who knew her and those who revealed her astonishing work.

Imagine... presents McCullin, a powerful documentary portrait of legendary British war photographer and photojournalist Don McCullin. Told through a series of searingly honest and often graphic interviews,McCullin recounts a life lived in the theatre of war - from his first assignment with the violent teenage gangs on his home turf of Finsbury Park, to capturing international conflicts of the past 50 years. The film lays bare McCullin's disgust for the destruction of human life, juxtaposed with the adrenaline rush of a life spent under enemy fire.

From beatnik to mod, from folkie to disco tart, from glam rocker to, most recently, crooner of American standards, Rod Stewart has had a remarkable musical journey. Alan Yentob visits Rod at his homes inBeverly Hills and Essex and talks to his friends and family, including all eight children aged from two years old to 50.

Featuring rare archival footage of Rod when he was barely out of his teens and living above his parents' north London sweetshop, lmagine examines an entertaining career across five musical decades.

imagine... presents Robert B Weide's intimate two-part study of the multi-Oscar winning New York auteur.

In this first part, Woody Allen talks candidly about his childhood in Brooklyn, his early fame as a stand-up in New York City and his first forays into screenwriting and filmmaking. He discusses his prolific body of work, which includes some of the most memorable cinematic moments of all time.

With unprecedented access to the director, Weide reveals the man behind the trademark glasses.

imagine... presents the second part of Robert B Weide's intimate profile of Woody Allen. The New York writer, director and actor doesn't shy away from discussing his sometimes controversial relationships withthe leading ladies in his life, or the hits and misses of an unparalleled body of work spanning five decades of filmmaking.

Contributors including Martin Scorsese, Diane Keaton, Scarlett Johansson and John Cusack join Allen's family of filmmakers for a unique insight into one of the most obsessive and enduring directors of all time.

Alan Yentob profiles the most successful female architect there has ever been. Born in Baghdad in 1950 and based in London, Zaha Hadid is now one of a handful of global superstar designers who have changed the way people think about the world through buildings. Yet this hasn't always been the case; Hadid once had a reputation as unbuildable, a 'paper architect' whose projects began as vivid paintings of gravity-defying shapes exploding into the void. How did this extraordinary woman - by turns charming, stubborn, visionary yet exacting - come to build the impossible? imagine... visits her buildings across the globe - from Austria to Azerbaijan - to find out, as Alan Yentob explores what makes Zaha Hadid tick.