The Madrid attacks of March 11 2004 are commemorated in a potent documentary film called Todos íbamos en este tren (We Were All on That Train), which consists of 24 short pieces offering different perspectives on the tragedy. It is showing in only one cinema in the capital, and that cinema is in the barrio of Vallecas, far from the city centre, but close to where one of the trains was blown up. I saw the film at six o'clock tonight - and I was the only person in there. In theory it's good and necessary to remember tragedies - but the thought struck me, as I sat there alone, that perhaps nobody, least of all those close to the victims, actually wants to. See it if you can.