How can I cancel my tickets or switch theater. I need to go to a later showing and it's at a different theater

You can do it through the app up to a certain time frame before the movie. After that call the theater, they are usual very accommodating.

On the regal app you can also cancel tickets for a refund/exchange up to the day before the movie. But calling the theater always works to.

Call theatre, they are helpful.

I have had to cancel my ticket before and they will allow you to cancel it as long as you do it prior to the movie ending for that play time.

Just call the theater and refund your ticket. They should be accommodating.