Mike Leigh’s dramatic comedy Tender Loving Care took home three top awards at Saturday night’s closing ceremony of the 74th annual edition of the San Sebastian International Film Festival, which ran Sept. 18-26, including the Golden Shell for best film and Silver Shell for Kate O’Flynn’s lead performance. O’Flynn shared the award with Asta Kamma August for her work in Hans Petter Moland’s Growth of the Soil, which also took home best cinematography for DP Oskar Dahlsbakken. At a press conference earlier in the week, Leigh talked about why Tender Loving Care would probably be his last film. “It’s a practical matter to do with my medical…