The staff at Alexander McQueen vehemently denied that they were designing Kate Middleton's wedding dress — and turns out not all of them may have known that's what they were working on. According to Us Weekly, the lace-makers were told that Kate's lace was actually for a dress for a British period costume drama. McQueen seamstresses were also told that they were doing a dress for a film, and when Sarah Burton went to Buckingham Palace to assemble the dress, she worked with helpers who had all signed secrecy agreements. Another fascinating detail: They reportedly sewed a blue ribbon into the lining of the dress so Kate would have something blue. Silly gooses! She already had Diana's sapphire engagement ring. Hear more in the video.