Cruise has known the royal couple for a number of years and also met William's mother, Princess Diana, and attended her funeral in 1997.
William and Catherine renew their friendship with the Hollywood star at the premiere for his film Digger.
Robbie Williams and Jennifer Hudson also performed, with Kylie Jenner and Timothee Chalamet among the celebrities in the crowds.
The former footballer was joined by his wife Victoria Beckham and their children, as well as actor Tom Cruise.
Welsh singer Katherine Jenkins says Tom Cruise was "almost body-slammed" against a wall when they met.
The Mission: Impossible star received the honorary prize after being nominated four times for an Academy Award.
The star of the Running Man remake shares how the advice changed how he runs.
Jake Barrett says Cruise is "particular" about his work, and became involved in the filming process.
Disney's Lilo and Stitch remake and the latest Mission: Impossible become two of the year's biggest films.
