Should I buy tickets over the phone for a 1:15 saturday showing of Vice? Can I pay with credit card as I don't have a smart phone

They don't do phone sales. I'd go in person before then and just buy it ahead of time. Or on a smartphone

I think if you had a computer that was internet connected you could make ticket purchases. I don't think you will be able to call them and order tickets over the phone. I don't think they are set up for phone sales.