How many movies have Hari Prashanth and S. P. Balasubramaniam collaborated on?

They have worked on 3 movies together! Their first movie together was Unnai Charanadaindhen (2003) while their highest rated movie together was Chennai 600028 (2007). They have not worked together since Chennai 600028 II: Second Innings (2016). They are most known for their comedy films together.