I think after 5pm, all movies go to full price, except Tuesdays, matinees price all day.
The matinee prices went down they are now 5 bucks thats what i paid last week when i saw tomb raider.The cut off time is 6pm i just called them and verifided it and prices.
You have to check Google, millstone theater. Each matinee is different, most times it is between 11 & 11:30 plus seniors get discount
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