How many movies have Bibeth Orteza and Pia Guanio collaborated on?

They have worked on 2 movies together! Their first movie together was Enteng Kabisote 3: Okay ka, Fairy ko... The Legend Goes on and on and On (2006) while their highest rated movie together was Ang Darling Kong Aswang (2009). They have not worked together since Ang Darling Kong Aswang (2009).