Feature Films:
* Hedd Wyn (1992): A critically acclaimed film about a young Welsh poet killed in World War I.
* The Phantom of the Opera (1925): While this silent film is primarily known for its English version, it was originally filmed in Welsh.
* The Last Dragonslayer (1984): A fantasy film featuring a fair amount of Welsh dialogue.
* The Wind That Shakes the Barley (2006): This Oscar-winning Irish film features some Welsh dialogue.
* Y Mabinogi (2007): A fantasy film based on Welsh mythology.
* The Rite (2011): A horror film set in Wales with some Welsh dialogue.
* Yr Anrheithwyr (The Raiders, 2013): A Welsh-language action film.
* Llygad y Storm (Eye of the Storm, 2017): A drama about a young woman struggling with alcoholism and mental health.
* Dakota (2019): A crime drama set in Wales.
* The Feast (2021): A horror film that premiered at Sundance and includes some Welsh dialogue.
Short Films:
* The Welsh Girl (2005): A short film about a young Welsh girl who wants to be a dancer.
* The Last Welshman (2014): A short film about a man who tries to preserve his language and culture.
Upcoming Films:
* The First Man (2023): A sci-fi film set in Wales that features a Welsh-speaking character.
Television:
* Hinterland (2013-2018): A popular crime drama with some Welsh dialogue.
* Keeping Faith (2017-present): A drama featuring a strong Welsh presence.
* Wales: The State of Nature (2022): A nature documentary featuring Welsh narration.
Note: This is not an exhaustive list, and new Welsh-language films are being made all the time. You can find more information about Welsh-language films on the website of S4C, the Welsh-language television channel.
Also, keep in mind:
* While the number of films entirely in Welsh is relatively small, many films set in Wales feature some Welsh dialogue or characters.
* The Welsh film industry is growing, and there is a increasing demand for films in the Welsh language.
If you are interested in watching Welsh-language films, you can often find them online through streaming services or on DVD. S4C also has a dedicated website for its films, which you can access at [https://www.s4c.cymru/](https://www.s4c.cymru/).