Samuthirakani's 'Appa' was an inspiration to many parents and teachers. Even though there was not much marketing, the film became a success just through positive word of mouth. Many schools requested their staffs as well as parents to watch 'Appa' which has a story revolving around the bonding between a father and son and teaches how a child should be brought up in life. Today, the film celebrates its 50th successful run in theatres. Actor - director Sasikumar who has played a cameo in the flick has shared the 50-day poster of 'Appa' on his microblogging page.