Désirée Finnegan has been announced as the new chief executive of Fís Éireann/Screen Ireland.
The board said this followed a competitive international recruitment process.
Originally from Dublin, Ms Finnegan has most recently held the position of senior vice president of theatrical marketing and publicity at Warner Bros Pictures.
While there she led the regional marketing operations for Europe, the Middle East and Africa - working with local territory offices and a London-based team.
Prior to that she was based at the studio's headquarters in Burbank, California and held the position of senior vice president for international publicity.
Since joining Warner Bros in 2004, she has worked on many film campaigns across all genres.
Congratulations and welcome to new Chief Executive Désirée Finnegan! https://t.co/ORUGTgwp1i
— Irish Film Institute (@IFI_Dub) April 25, 2019
Notable commercial campaigns include 'Dunkirk', 'Ready Player One', 'The Lego Movie', 'The Dark Knight' trilogy and the 'Harry Potter' franchise.
She has also worked on successful Golden Globe and BAFTA-award winning campaigns for critically acclaimed films such as 'The Departed', 'Inception', 'Gravity' and 'Argo'.
Prior to Warner Bros, she held various roles in Ireland before relocating to New York for a position with Enterprise Ireland.
She holds a Bachelor of Business Studies degree from Trinity College Dublin (TCD), and a Masters degree in Strategic Management.
She takes over the Fís Éireann position previously held by James Hickey.
Commenting on the appointment, Screen Ireland chair Dr Annie Doona said: "Désirée brings a wealth and depth of experience to the role of chief executive at Screen Ireland.
"She is an experienced leader who brings huge energy to her work and has a strong commitment to the screen industries.
"Her wide knowledge of the international film industry will benefit the Irish industry and we are delighted to welcome her back to Ireland to lead the agency into the next phase of growth."
Ms Finnegan said: "I am delighted to be returning home to take up the post of Chief Executive of Fís Éireann/Screen Ireland and for the opportunity to continue building on the critical and commercial success of the Irish film, television and animation industry.
"My passion for supporting great storytellers and those with creative vision has played an important role throughout my career and I am sincerely looking forward to working with the incredible wealth of Irish creative talent, both in front of and behind the camera."
Capital funding for the agency is currently at €16.2m, and the Government is set to provide €200m in funding to Screen Ireland up to 2027.
Screen Ireland said the Irish screen industries have added €692m to the Irish economy.
Currently there are 12,000 full-time equivalent jobs in film, television and animation production here.
Ms Finnegan is expected to take up the role in August. Mr Hickey will remain in position until this time.