London:
Before his wedding ceremony began, Prince William told his bride Kate, "You look absolutely beautiful", according to professional lip readers.
The groom mouthed the words while the hymn "Great Redeemer" was being sung, The Sun's lip-reader John Cassidy reported.
Another professional forensic lip reader, Tina Lannin, who also reads CCTV footage, said William cracked a joke to his father-in-law at the altar, saying: "We're supposed to have just a small family affair".
Lannin also spotted Prince Harry nervously comment "Right, she is here now" as Kate arrived at the abbey, news.scotsman.com reported.
Lannin has been deaf all her life, and relies on lip reading to communicate. She can lip read in Arabic, Spanish, German and Japanese, as well as English.
She works as a careers consultant and is also a forensic lip reader, reading CCTV and other media where sound is absent.