As an ipic member you can login with you account into the app and see in the calendar if Mamma Mia or ang other movie is still playing by the 14th. They usually post new movies on Tuesdays, but you can see future screenings in the app. Weekdays are cheaper than weekends. So Monday to Thursday is cheaper.
As much as I would like to answer your question, the best thing would be to call and talk to someone there.
Thanks! Your answer is awaiting moderation.