The title’s a given: It’s Greenhorn, a tale about a boy — a Holocaust survivor — and the friend he makes in postwar New York City. The director’s been named: He’s award-winning filmmaker Tom Whitus, whose work has been shown on the Lifetime Network and Showtime. The screenwriter’s at work: She’s Ree Howell, an award-winning playwright and film producer, who’s finishing the script this month. And the author of Greenhorn (the book) is on board as co-producer: She’s native Memphian and New York literary agent Anna Olswanger, who based the novel for middle-school-aged children on a real-life story she heard from Rafael Grossman, former senior rabbi at Baron Hirsch Congregation in Memphis.