Zero: An Investigation Into 9/11
- Tahun: 2008
- Negara: Italy
- Genre: Documentary
- Studio: Telemaco, TPF Telemaco, theGLAV
- Kata kunci: 9/11, twin towers
- Pengarah: Francesco Trento, Franco Fracassi
- Pelakon: Dario Fo, Gore Vidal, Tim Sparke, Nafeez Mossadeq Ahmed, Brian Clark, Louie Cacchioli