Well, you couldn't use the coupon because its only for that one specific movie you were gonna see and since its at the same time as the new release, you couldn't reuse the coupon. If you do go with your friend, Its $10 a person. If you're paying for both of you, it would be $20. If you are paying for yourself, its just $10. If your friend has a coupon like you had (but for the new release and same time) then it would be $17 total if you paid for both tickets. Hope this helps :)