Furnish's fluffy, fawning look at a fashion icon

His revealing Elton John documentary Tantrums And Tiaras led you to believe that film-maker David Furnish's Inside Gucci would provide startling behind the scenes stories about the fashion house.

Far from it. This was little more like a 60-minute commercial, an animated Hello spread in which the rich and famous said how absolutely fabulous Gucci was.

The warning signs came when Furnish told us that Posh and Becks had "graciously invited me along" to talk to them about the company that's become "synonymous with style and good taste".

Tom Ford is the actor-turned-designer who runs it. He's very good-looking. We know this because everyone kept telling us this fact about "the Prince Charming of the fashion industry" who had kissed Princess Gucci and brought her back to life.

Named 2001 International Man of the Year, Ford is a mix of genius designer and genius marketeer. He agreed to talk to Furnish and, unable to do the chat at his HQ, recreated his office for the interview in London.

The scene was set for a deep and meaningful conversation exposing the nitty-gritty about the Gucci empire. And what did Furnish say to Ford? "You're an extremely good-looking man".

Further evidence, perhaps, that C4 is fluff while five shows serious documentaries. Dambusters: Revealed was a fascinating account of a Second World War incident most of us only know through the old British movie starring Richard Todd.

The task of Barnes Wallis, one of Britain's most talented aircraft designers, was to find a way to blast the dams that held water providing German factories with hydro-electric power. "If he could turn off the tap, the Nazi war machine would grind to a halt," as the narrator explained.

He began developing a "bouncing bomb" that would skim across the water before exploding. His research included a bag of marbles, a home-made catapult and a tank of water. Together with his 16-year-old son, he worked out what it took to bounce a marble off water.

Wallis applied the principles of backspin used by sportsmen to get the bomb to work. An early version looked like a giant golf ball.

There was fascinating original footage of the tests, both the hits and the misses. The eventual Dambusters mission was a success - four out of six targets were hit, and two were destroyed - but with the loss of 53 crewmen on the 19-bomber raid. It deeply affected Wallis, who vowed never again to risk men's lives in his work.