Keira Knightley Is 'Terrible' at Guitar – Even After James Righton's Lessons

Four months after getting hitched, Keira Knightley is thrilled to be a newlywed.

“It’s fantastic!” the actress, 28, tells PEOPLE at Saturday’s premiere of Can a Song Save Your Life? at the Toronto International Film Festival. “I’m very happy.”

Keira Knightley and James Righton Are Back in London After a Honeymoon in Corsica

The honeymoon is over – but they look as in love as ever!

Keira Knightley and her new husband, James Righton – who tied the knot May 4 in an intimate ceremony in Mazan, France – are back in London after their honeymoon in Corsica.

While away on the Mediterranean island, the couple enjoyed the sand, surf and sailing as well as each other’s company.

Keira Knightley and James Righton Honeymoon in Corsica

Married life is already smooth sailing for Keira Knightley.

The actress and her new husband, James Righton – who tied the knot earlier this month during an intimate ceremony in Mazan, a small village in Provence, France – celebrated their new roles as husband and wife with a honeymoon to Corsica.

Keira Knightley & James Righton Are Married!

Keira Knightley has taken on her biggest role yet: wife.

The actress, 28, tied the knot with her fiancé of one year, James Righton, in an intimate ceremony at the town hall in Mazan, a small village in Provence, on Saturday.

“It was not a long service,” one witness tells PEOPLE, “and very few people.” The ceremony was performed by the village mayor and “occurred just before noon and lasted only about 30 minutes. Keira looked beautiful. She wore a very pretty, very elegant dress.”

Keira Knightley Shows Off Ring as She Smooches Fiancé

Keira Knightley was flashing more than her megawatt smile Sunday in London – she also showed off her engagement ring from James Righton.

The British actress, 27, who is newly engaged to the Klaxons keyboard player, 28, was sporting what appeared to be a circular diamond on a thin gold band as she strolled around town with her fiancé – the two of them kissing much of the way.

Keira Knightley Is Engaged to James Righton

James Righton is Keira Knightley’s knight in shining armor.

The British actress, 27, is engaged to Righton, a keyboard player for the U.K. indie rock band, Klaxons, her rep confirms.

Having reportedly been introduced by fashion correspondent Alexa Chung, the Pirates of the Caribbean actress and her beau were first spotted together publicly in April 2011.