HBO invited the Ministers to attend the launch of the third successful series of 'Game of Thrones' which was filmed at Titanic Studios in Belfast.
The First Minister said: "The Northern Ireland Executive is committed to growing a dynamic, innovative economy. Through investment in our creative industries, Northern Ireland will continue to build on its reputation across the world as an excellent location to invest.
"Northern Ireland Screen, through its funding support from Invest NI, has provided HBO with assistance of £6.05million, under the Northern Ireland Screen Fund, to secure the pilot episode and the first two series of this award winning medieval fantasy drama.
"Game of Thrones has generated up to £65million direct spend in the local economy. We will continue to build on our highly successful relationship with HBO and have made a strong argument for any further series to continue to be filmed in Northern Ireland.
"Investment of £8million in the Titanic Studios in Belfast, supported by Invest NI demonstrates a real confidence in our film and television sector."
The deputy First Minister said: "The film industry is an important sector for our economy and offers huge potential for further growth. HBO'S Emmy award-winning 'Game of Thrones' has created 800 jobs and contributed millions to the local economy. Its success provides the perfect platform to pitch for more film making projects from this important niche market.
"Through the work of NI Screen we have secured major film and television productions and now with the 100,000 square feet Titanic Studio facility in Belfast we hope to build on our international appeal as a global hub for the creative industries."
Northern Ireland Screen is the lead organisation in developing the film, television and digital content industry.