Audrey Hepburn fans got a sneak peak Tuesday of dozens of garments and personal effects once belonging to the movie star that will hit the auction blocks next week. A Givenchy black lace dress that Hepburn wore in “How to Steal a Million” and a demure ivory wedding gown that never made it down the aisle are among the items. The fans, fashionistas and those looking to score a slice of film history were given the preview of the collection in Paris before the Dec. 8 sale in London. “For her, what was important was not decoration and lots of embellishment. She liked very simple things — less was always more for Audrey,” said auctioneer Kerry Taylor, whose eponymous auction house is handling the sale.