Van Doesburg and the International Avant-Garde: Constructing a New World, Tate Modern

The future is square in Tate Modern's mammoth survey of Dutch movement

Modernist art movements are a lot like totalitarian regimes. They produce their declaratory manifestos, send forth their declamatory edicts, and, before you know it, a Year Zero mentality prevails: the past must be declared null and void. Seeking to overturn 1,000 years of Western civilisation with a universal aesthetic utopia of brightly coloured squares and boldly delineated lines, a confident Theo van Doesburg, founding member and chief theorist of the Dutch movement De Stijl, wrote, “What the Cross represented to the early Christians, the square represents to us all.

The Virtual Revolution, BBC Two

The internet - a force for good or ill?

If I wanted to be solipsistic about this, I could say that the opening episode of The Virtual Revolution, the new BBC Two series about the changes wrought by the internet, is also the story of theartsdesk.com. It certainly felt personal at times. But then we print journalists, now launched together into cyberspace, are but one (very important, naturally) sub-atomic particle of what is variously described here as "the fastest change since the Industrial Revolution" and "the most exciting development since Gutenberg".

The Boys Are Back

Clive Owen pours on the charm in a film that shuts out the females

Boys will be boys, and, eventually, grown boys as opposed to men. That's the cheerful (depending on how you look at it) message of The Boys Are Back, in which Clive Owen pours on the not inconsiderable charm as a father suddenly left having to care for his two sons. That  women barely enter into the scenario - and when they do, emerge as so many killjoys - will appeal to the eternal adolescent in a movie that aims to make eternal roustabouts of us all. Let's face it:  wouldn't you rather sit on the bonnet of dad's very, very speedy car instead of - ugh! - doing the dishes?