[2] She trained for two years at the Performing Arts School in Galway,[3] and is a proficient musician (piano to Grade 7 level) and dancer.

For her performance as Bernadette, Noone was nominated for British Newcomer of the Year at the 2004 London Film Critics' Circle Awards, alongside Mullan, who won best director.

[9] In 2008, she co-starred in Doomsday, directed by Neil Marshall, Speed Dating and Ella Enchanted.

[10] Noone has also appeared in The Descent Part 2, The Day of the Triffids and The Runaway and she has co-starred in episodes 1–6 in season one of Jack Taylor.

[10] In 2023, she returned to Ireland as Detective Sergeant Claire Wallace in the RTÉ crime series Hidden Assets.