Bill Murray
Yassss...talk about your epic surprise guest! The actor, who appeared with George Clooney in The Monuments Men, is seen heading to the wedding on a taxi boat.
Cindy Crawford and Rande Gerber
The married couple heads to watch their longtime pal George Clooney wed Amal Alamuddin.
Bono and Ali Hewson
The U2 rocker, pictured here with his wife at Venice Marco Polo airport, is a longtime friend of George Clooney. Both have been commended for their humanitarian work. When the actor made Time magazine's 100 list of heroes and icons, the singer praised his friend in a piece for the outlet, calling him a "pragmatic idealist."
Bono
The U2 rocker flashes his signature greeting as he arrives via taxi boat to George Clooney and Amal Alamuddin's wedding.
George Clooney, Cindy Crawford and Rande Gerber
The actor has breakfast with his friends before his wedding.
George Clooney
The actor is seen leaving breakfast with Cindy Crawford and Rande Gerber.
Anna Wintour and Bruce Bozzi Jr.
Vogue's editor in chief and the executive vice president of Palm Restaurant Group arrive at George Clooney and Amal Alamuddin's wedding
Matt Damon and Luciana Barroso
The actor, pictured here with his wife, appeared with George Clooney in Oceans Eleven, Ocean's Twelve, Ocean's Thirteen, Syriana, Confessions of a Dangerous Mind and The Monuments Men.
Emily Blunt, John Krasinski and Matt Damon
Wearing a stunning blue lace gown, the Devil Wears Prada actress is helped out of a taxi boat as the two actors follow.
Matt Damon and Luciana Barroso
The actor's wife looked beautiful in a floral gown while her hubby looked dashing in a black suit on the day before George Clooney and Amal Alamuddin's wedding.
Anna Wintour
Vogue's editor in chief is helped out of a water taxi upon arrival during George Clooney and Amal Alamuddin's wedding weekend. The actor is one of the few male stars to be featured on the cover of her magazine. He and supermodel Gisele Bündchen appeared together on the cover of its June 2000 issue.
Check out photos George Clooney and Amal Alamuddin's road to engagement!