Big Fat Liar
- Tahun: 2002
- Negara: United States of America
- Aliran: Keluarga, Komedi, Petualangan
- Studio: Tollin/Robbins Productions
- Kata kunci: right and justice, screenplay, movie business, liar, revenge, prank, teen movie, hollywood, intellectual property
- Direktur: Shawn Levy
- Pemeran: Frankie Muniz, Paul Giamatti, Amanda Bynes, Amanda Detmer, Sandra Oh, Russell Hornsby