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Gwaed ar y Sêr
- Shekara: 1975
- Kasa: United Kingdom
- Salo: Comedy, Horror
- Studio: Bwrdd Ffilmiau Cymraeg
- Mahimmin bayani: wales, choir, school, evil child, school choir
- Darakta: Wil Aaron
- 'Yan wasa: Grey Evans, Hywel Gwynfryn, Dafydd Iwan, Dyfan Roberts, Wynford Elis Owen, Dafydd Hywel