Dheena - CM was screened on the 13th of April in SL. I think SL was first to screen CM throughout the whole world. I know u would be wondering y 13th, bcoz 14th was the tamil new year. In SL 13th and 14th r called the Tamil & Sinhalease new year. Though both community celebrate on 14th, Sinhalease ppl also celebrate the day before new year which is called the "old year". So both days r given holidays by the government of SL. This time the theater management made use of this. As we know Rajini is not only known by tamilians throughout this world, many sinhalease also know rajini very well than any other tamil actor. 

 CM was screened in Colombo in 2 theaters. which was Concored and Cine city complex. Concored is an old theater, but after more than a year of reconstruction, they opened the theater with a big bang by screening CM. This made the crowed not only to come watch the movie also the theater. Usually in Colombo theaters (accept for the 1st day) it is allowed to advance book tickets. But for this movie tickets were not allowed to advance book for 2 weeks.

Out of Colombo it was screened in North and East, which were the war areas before. Specially in East, in Batticaloa there were advance bookings for this movie 2 weeks before the 14 th of April. Also they had a cycle competition during the week the movie was realesed and the prize was for 2 winners who came first to go to india and meet rajini face to face.

Since there are few tamil theaters in Colombo, usually a movie does not run for long time. But CM has passed its 50th day and still running successfully."