Moira Sweeney is an award-winning filmmaker exploring creative and innovative ways of visualising the personal within changing social worlds. In 2017, her feature doucmentary film Keepers of the Port premiered at the Irish Film Institute as part of Port Perspectives and aemi's port | river | city  and received a Best Documentary Nomination from the Kerry Film Festival. As a multi-screen installation, it has featured in Tall Ships Dublin, Photo Ireland, the National Concert Hall and the Lab Gallery in Dublin.  The Irish Times described the film as 'a poem to a way of life that has changed utterly in a generation, but which hasn't entirely disappeared . . . there's an unexpected sense of harmony and of beauty in this highly industrial space'.

In 2019, she collaborated with Southpaw Pictures on Starboard Home (2019), a documentary film which evolved out of the Dublin Port and National Concert Hall commissioned album and concert series of the same name. In this filmic love letter to the Liffey the words of contemporary Irish songwriters and musicians, including Paul Noonan, John Sheahan, Lisa O Neill, Colm Mac Con Iomaire and Gemma Hayes, are visualised to evoke the once formative link between Dublin city and its docks. The film premiered at the Irish Film Institute as part of Tradfest, was broadcast on RTÉ in May 2019 and received a Business to Arts Special Recognition Award for Portfolio of Investment for Dublin Port. In 2019 Moira also collaborated with musician Seán MacErlaine on the film meditation Boyne Song for the exhibition I send my love along the Boyne at the Solstice Arts Centre.

In 2021, Moira directed Mná na bPíob, a feature length documentary produced by Edel Fox for Tyrone Productions, which premiered at DOCS Ireland and is available on the TG4 Player. 'What distinguishes Mná na bPíob from many other traditional documentaries is that musician Louise Mulcahy brings mostly unfamiliar figures to light' (Journal of Music, 2021). Moira is the Film Supervisor for Portalis, a SETU School of Humanities led transdisciplinary pilot project mapping the story of the first human journey between Ireland and Wales dating back to the Mesolithic period. It builds on the work of WIT's Creadan research project, led by Joy Rooney and for which Moira directed Creadan: A Sense of Place (2021). 

Moira is currently developing a film about a Belfast artist from the early 20th century.