The couple - who became engaged last December - are said to have kept the wedding location in southern Italy a complete secret, and only told guests details of the day at the last minute.
"It's great to be married," the couple told People in a statement today (October 19). "The ceremony was beautiful and it was so special to be surrounded by our family and friends."
The actors were rumoured to have thrown a beach-side pre-wedding party for guests on Wednesday (October 17). The festivities apparently ended with a ten-minute long firework display in celebration of the forthcoming nuptials.
"The wedding was top-secret, hush-hush," said a source close to the pair earlier this week. "Save-the-dates went out in the spring and little information was given.
"Guests were warned that any phones or cameras would be confiscated, so [it would be] best to leave them at the hotel."
The ceremony was attended by a host of famous faces, said to include Timbaland, 'N Sync member Chris Kirkpatrick and former Saturday Night Live star Andy Samberg.
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Watch Jessica Biel discuss her role in the upcoming film Hitchcock with Digital Spy below: