Ayalaan Movie OTT Release Platform Release Date Update: One of the most anticipated Tamil sci-fi film adventure film, Ayalaan, released in theatres. Written and directed by Ravikumar, the film features Sivakarthikeyan, Allien, and Rakul Preet Singh in the main lead roles, along with Isha Koppikar, Sharad Kelkar, Yogi Babu, Bala Saravanan, and many others.