Indie powerhouse A24 has launched A24 Auctions, a website that will allow film and television fans to bid on costumes and props from the company's top titles. Proceeds will go to charities that benefit first responders during the current pandemic. You have to admire A24's willingness to experiment, and this is a rather brilliant idea that's all in the name of a good cause. Let's start with what is currently up for sale as part of the A24 Attic Auction, which boasts an assorted offering from various A24 projects, and benefits NYC Health + Hospitals, the largest …