At its Venice Film Festival premiere, “The Voice of Hind Rajab,” directed by Kaouther Ben Hania, received 23 minutes of applause but also prompted a flood of hate emails to its producers, including Hollywood stars Brad Pitt and Joaquin Phoenix. The film, which dramatizes the last moments of a five-year-old Palestinian girl killed by Israeli fire, will be Tunisia’s entry for the 2026 Academy Awards and aims for visibility on the global stage.