Elizabeth Hurley is to marry fiance Arun Nayar today.
Guests include Elton John, Kate Moss and Hurley's ex, Hugh Grant.
The Daily Mirror however, reports that the pair had married on Friday in front of a few witnesses, and Saturday's ceremony would be a celebration of the nuptials.
A source told the Mirror: "Only about six or seven people knew about the first service."
"They wanted to enjoy their wedding night alone."
Hurley's spokesman has declined to comment on the wedding reports.
Hurley and Nayar reportedly have signed a deal with Hello! magazine for exclusive rights to images of the event.
According to reports, the couple will fly to India for celebrations in Mumbai and Rajasthan next week.