Initially, Geraldine trained as a Film Editor in London working on films including Terence Davies Distant Voices, Still Lives and Ridley Scott commercials. When she returned to Ireland in ’89, she set up her own editing company and edited numerous television films, short films and documentaries, including the Emmy award winning Bringing it all Back Home Series. In 1996, she wrote and directed her first feature film The Sun, Moon & Stars. It received Best Comedy award at the Florida Film Festival, USA and was an official selection at Montreal, Edinburgh and Buenos Aires Film Festivals.
Her second feature Chaos/Deathgames won the audience award at the Luxembourg Fantasy Fest 2001.

Her short story Out of Sight was a runner up in the 2009 Francis McManus radio award and broadcast on RTE Radio 1, Nov ’09. The Stenographers, a short story she wrote in 2011 was long listed for the FISH publishing memoir competition.