Actress Brooke Shields sporting a burgundy velvet Ralph Lauren gown with husband Chris Henchy.
Tom’s Collateral co-star Jada Pinkett Smith and husband Will set flashbulbs popping.
Victoria with hubby David at the pre-wedding celebration on Friday night.
Brooke and her husband also attended the bash.
Musical duo Jennifer and Marc have brought some high-octane glamour to the Italian capital.
Comedian Jim Carrey and actress Jenny McCarthy look thrilled for Tom and Katie as they arrive at Castello Odescalchi for the ceremony.