The archbishop who will marry Prince William and Kate Middleton has made a short film about his role in the royal wedding, and urged people to support the royal couple in the weeks, months and years to come.

Archbishop of Canterbury Rowan Williams, who will preside over the couple's April 29 ceremony at Westminster Abbey, says he feels honored to be leading the historic nuptials. Williams emphasizes how the couple's wedding will send a positive message to the world.

He also praises William and Kate for keeping the wedding true to themselves as a couple, saying that they are "deeply unpretentious people," sensible and realistic.

Williams is the spiritual leader of the world's 80 million Anglicans. The film was released Thursday by his office, Lambeth Palace.