How many movies have Park Ji-yeon and Park So-yeon acted in together?

They have worked on 5 movies together! Their first movie together was Ghastly (2011) while their highest rated movie together was Music Bank in Paris (2012). They have not worked together since T-ARA Japan Tour 2013 - Treasure Box- 2nd TOUR FINAL In Budokan (2013). They are most known for their music films together.