British royals PRINCESSES BEATRICE and EUGENIE missed out on attending last night's (21SEP06) London premiere of The Devil Wears Prada because they hadn't finished their homework. The teenage siblings, the daughters of PRINCE ANDREW and Sarah Ferguson, DUCHESS OF YORK, were due to have been the guests of honour at the bash. An insider tells British newspaper the Daily Express, "Beatrice's headmistress and her parents thought it unsuitable for either of the girls to attend because the premiere was on a school night and in London."