US actress Elle Fanning, a member of this year’s jury at the Cannes film festival, said she fainted at a gala dinner this week, blaming a “tight dress” she wore at her “time of the month”.

Fanning, who is keeping up a gruelling schedule of movie-viewing and soirees at the glitzy French Riviera event, said on Instagram Monday: “Oops, had a fainting spell tonight in my 1950’s Prada prom dress but it’s all good.”

British actor Colin Firth, who was attending the same dinner, rushed to Fanning’s aid until the “Beguiled” star was taken away for medical assistance, Variety said.