Firth, 56, is eligible through his film producer wife Livia Giuggioli, 48, and will now hold dual nationality -meaning that while he remains the ultimate British gentleman, he will also be able to enjoy a splash of la dolce vita.
But last night it emerged that actor Colin Firth, whose roles include the King himself, had been made an Italian citizen.
The couple live in the United Kingdom with their two sons, and have been married since 1997. Our children have been dual citizens since the beginning.
The actor, who has played Mr. Darcy in "Pride and Prejudice" and King George VI in "The King's Speech", said he "will always be extremely British" but also has "a passionate love of Italy".
He said in a statement: 'My wife and I are both extremely proud of our own countries.
Whilst his spokesman said Firth chose to apply for dual British-Italian citizenship in order to have "the same passports as his wife and children", a source revealed that the decision was driven by the actor's distaste at Britain leaving the EU. We feel that we've made a gift of that to each other.
Firth is married to Italian Livia Giuggioli, speaks the language fluently, and spends a lot of his time in the country, where the family has a holiday home in Umbria.
'I will always be extremely British (you only have to look at or listen to me). According the Associated Press, Firth said in a statement that they never took much issue with each of them having passports from two different countries. Britain is our home and we love it here.
'Many colleagues, including Emma Thompson, are, like me, enthusiastic Europeans, and we still can not believe it'.
Congratulations - or should we say, complimenti - to Colin Firth, who now has Italian citizenship.
'Like nearly everybody I have a passionate love of Italy and joining my wife and kids in being dual citizens will be a huge privilege'.