Tom Cruise and actress Katie Holmes arrive at the fan screening of 'Mission: Impossible III' at the Grauman's Chinese theatre in Hollywood May 4, 2006. (Yahoo.com) Photo Gallery >>>

    The invitation was accompanied by a list of Scientology rules, the Daily Mail reported.

    A source told the newspaper the Beckhams were honored by the invitation, but "shocked" to learn that if they decide to visit, they must follow strict rules of the Church of Scientology.

    "Apparently they can't take any photographic equipment, they're banned from touching Suri and they're not allowed to do any baby-talk around her," the source said.

    "It will be very difficult for Victoria, because she just loves babies and is trying for a daughter with David at the moment."

    Tom and Katie befriended the Beckhams at a football match last year. Former Spice Girl Victoria -- who has three sons with soccer star David -- reportedly gave Katie advice while she was pregnant.

    So far Tom, 44, and Katie, 27, have kept Suri hidden from the public eye, sparking various conspiracy theories surrounding the baby.
   Pics of Suri Cruise curious for clamorous media

    Friends of the Top Gun star to claim they have seen his four-month-old daughter include actresses Jada Pinkett Smith, Leah Remini and Cruise's ex, Penelope Cruz. Enditem

    (Agencies)