'Hedd Wyn' is a 1992 Welsh anti-war biopic. Ellis Humphrey Evans, a farmer's son and poet living at Trawsfynydd in the Meirionydd countryside of upland Wales, competes for the most coveted prize of all in Welsh Poetry - that of the chair of the National Eisteddfod, which in August 1917 was due to be held in Birkenhead (one of the rare occasions when it was held in England). After submitting his entry, under his bardic name "Hedd Wyn" ("Blessed Peace") Evans later departs from Meirionydd by train to join the Royal Welsh Fusiliers in Liverpool, despite his initial misgivings about the war. Ellis is sent to fight in the trenches of Flanders. 'Hedd Wyn' was the first Welsh-language film to be nominated for an Oscar.
| Directing | Paul Turner | Director |
| Writing | Alan Llwyd | Writer |
| Production | Shan Davies | Producer |
| Directing | Michás Koc | First Assistant Director |
| Directing | Stephen Woolfenden | Second Assistant Director |
| Directing | Geoff Skelding | Third Assistant Director |
| Directing | Gillian Ellen | Continuity |
| Camera | Alwyn Hughes | Focus Puller |
| Crew | Alwyn Hughes | Loader |
| Camera | Roger Pugh Evans | Second Unit Director of Photography |
| Camera | David Hopkins | Grip |
| Lighting | Alan Chadwick | Gaffer |
| Lighting | Chris Hill | Electrician |
| Lighting | Ken Toms | Electrician |
| Lighting | Cliff Owen | Electrician |
| Lighting | Gwion Hughes | Electrician |
| Art | Phil Rawsthorne | Props |
| Art | Donna Williams | Art Department Assistant |
| Art | Lesley Dearn | Art Department Assistant |
| Costume & Make-Up | Ffion Elinor | Costume Assistant |
| Costume & Make-Up | Catriona Morrison | Costumer |
| Costume & Make-Up | Sue Williams | Costumer |
| Costume & Make-Up | Pat Everett | Costumer |
| Costume & Make-Up | William Steggle | Costumer |
| Costume & Make-Up | Gary Lane | Costumer |
| Costume & Make-Up | Lionel Digby | Costumer |
| Costume & Make-Up | Cherry West | Makeup & Hair |
| Costume & Make-Up | John Munro | Makeup & Hair Assistant |
| Costume & Make-Up | June Byrne | Makeup & Hair |
| Costume & Make-Up | Ann Marie | Makeup & Hair Assistant |
| Costume & Make-Up | Susie Astler | Makeup & Hair Assistant |
| Editing | Alan Kempster | Color Grading |
| Art | Pauline Hume | Graphic Designer |
| Sound | Jeff Mathews | Sound Mixer |
| Sound | Tim Partridge | Boom Operator |
| Sound | Jeremy Thatcher | Boom Operator |
| Sound | John Cochran | Audio Post Coordinator |
| Sound | Gustav Mahler | Songs |
| Sound | R. Williams Parry | Songs |
| Writing | Dwynewn Berry | Script Consultant |
| Writing | Trevor Keates | Script Consultant |
| Production | Elwyn Edwards | Researcher |
| Production | Eiry Palfrey | Researcher |
| Crew | John Long | Thanks |
| Crew | Chris Wood | Thanks |
| Crew | Morfudd Vaughan Evans | Thanks |
| Crew | D. J. Gibbins | Thanks |
| Crew | Trefor Johes | Thanks |
| Crew | Enid Morris | Thanks |
| Crew | Ellis Williams | Thanks |
| Crew | Gerald Williams | Thanks |
