'' Mary Is Happy , Mary Is Happy '' is a Thai Coming-of-age/Drama/Black-Comedy film written and directed by Nawapol Thamrongrattanarit , starring Patcha Poonpiriya , Chonnikan Netjui and Wasupol Kriangprapakit . The film was created from 410 tweets of @marylony in chronological order which revolves around " Mary " ( Patcha Poonpiriya ) and her friend " Suri " ( Chonnikan Netjui ) who were studying in a fictional high school . The film was one of three films which were developed , produced and funded by Venice Biennale in 2013 and had its world premiere at the Venice Film Festival . '' Mary Is Happy , Mary Is Happy '' had its world premiere at the Venice Film Festival on 1 September 2013 . The film also screened its Asia premiere at the Busan International Film Festival , beginning 3 October 2013 , Valdivia International Film Festival on 11 October 2013 , the Tokyo International Film Festival on 19 October 2013 , the Hong Kong Asian Film Festival starting 8 November 2013 , Torino Film Festival starting 22 November 2013
Busan International Film Festival
18th Busan International Film Festival
Mary Is Happy, Mary Is Happy