Mila Kunis and Ashton Kutcher reportedly want to marry in the UK.

The couple have been staying in London while Mila shoots Jupiter Ascending and have reportedly become so besotted with England they want to tie the knot there once Ashton's divorce from ex-wife Demi Moore is finalized.

"Mila and Ashton have fallen in love with the UK. They are desperate to get married as soon as possible because they want to start a family and are slightly old-fashioned about these things. The first place they thought of was Stonehenge, but they've also been looking at the Royal Pavilion in Brighton. Mila loves the idea of a stately home or something in the English countryside," a source said.

Despite considering lavish venues for the big day, Mila, 29, and Ashton, 35, want the ceremony itself to be "low-key" with only a few select guests witnessing the nuptials. "Although the venue may be spectacular, the wedding itself will be low-key. It's expected it will be just Ashton, Mila and a few family friends," the source added.