Margaret Qualley got “wasted” on drugs and tequila to get through filming a raunchy scene in her new film ‘The Substance’. The actress, 29, the daughter of ‘Four Weddings and a Funeral’ actress Andie MacDowell, 66, shot to fame thanks to her roles in ‘The Leftovers’ and ‘Once Upon a Time… in Hollywood’, and has now opened up about her latest role alongside Demi Moore, 61. She told The Sunday Times about shooting a highly sexual scene in the body horror flick ‘The Substance’ with the ‘G.I. Jane’ star: “That specific kind of sexuality doesn’t lend itself to me.” Margaret added she cried in a bat…