[1] Sriyani has appeared in several critically acclaimed Lester James Peries movies, including Golu Hadawatha, Desa Nisa and Ahasin Polawata.
During school time, she acted few dramas like Hathara Beeri Kathawa and Koheda Yanne Rukmani.
[7] Her maiden cinematic appearance came through a feature film Wings Over Ceylon directed by Pagngnasoma Hettiarachchi.
[7] After the marriage, Amarasena entered mainstream cinema, where her maiden acting came through in the blockbuster film Golu Hadawatha in 1968.
[9] Apart from dramatic roles, Amarasena also acted many commercial films of many genre, such as Kalyani Ganga and Raththaran Amma, which earned her positive critical responses.
Then she produced three television serials, Ira Bata Taruwa,[11] Hemanthaye Wasanthayak [12] and Hangi Muttham where they made partly in London for England-based Sri Lankan audiences.