It also operates the Savoy 3D Theatre, Liberty, Cinmax, Excel, Wilmax and Concord Cinemas.
Vithanage had started his career spanning 30 years in 1986, in theatre and drama before moving to film.
His critically acclaimed films including 'Sisila Gini Ganee, 'Anantha Rathriya', 'Pawuru Walalu', 'Purahanda Kaluwara' and 'Ira Madiyama' have won local and international awards in addition to being box office successes.
"As a leading entertainment company involved in developing the industry over the past few decades, a personality of Mr. Vithanage™s stature will undoubtedly enhance the value of the company and endorse its commitment to the industry," EAP Holdings managing director Jeewaka Edirisinghe said in a statement.
"Mr. Vithanage's appointment to the board is in addition to three other Independent board di