Felicity Blunt and Stanley Tucci attend 'Boardwalk Empire' Season 3 New York Premiere on September 5, 2012 in New York City. Credit: John Lamparski/WireImage

Stanley Tucci and Felicity Blunt were already legally married when they tied the knot for a second time in London September 29.

More than a month after the Hunger Games actor, 51, and the London-based literary agent confirmed their betrothal, the couple swapped vows again in the bride's home country. (Felicity was introduced to her husband by her actress sister, Emily, who worked with Tucci in 2006's The Devil Wears Prada.)

The ceremony took place at Middle Temple Hall in a large beautiful historic room, a source tells Us Weekly. Attendees included Emily's husband, John Krasinski, Meryl Streep, Ewan MacGregor, Steve Buscemi, Colin Firth and Aiden Quinn.

"Saturday was more of a celebration of their marriage since they were already wed," a source tells Us of Tucci and Felicity. "They had always planned on doing this."

This is the second marriage for Tucci. The Julie & Julia actor has three children with his late wife, Kate, who died in 2009 from breast cancer.