Daniela Nardini narrates a documentary exploring why the British funeral has acquired a new spirit of informality. Today's departed are just as likely to be sent on their way to the strains of Robbie Williams as they are to a classic hymn. A bewildering array of coffin styles is available, with even an environmentally-friendly wicker casket for the organically-minded. Are we improvising new rituals to fill a more profound vacuum in our secular society?