Uma Thurman has joined a group of literary lions for the launch of “Seriously Entertaining,” a monthly showcase of lit talent at City Winery. The downtown “literary cabaret” hosted by best-selling author Amanda Foreman’s new nonprofit, House of Speakeasy, kicks off with a Jan. 27 gala featuring Thurman, Susan Orlean, Andy Borowitz, Adam Gopnik, singer/writer Dar Williams and Simon Winchester. Thurman will host a literary quiz dubbed “The Tip of My Tongue,” we hear.