If available they can. However, you need to go to the management/ customer service area. I'd say go as soon as possible.
Go inside to the customer service desk. Don't wait in the ticket line
I'm sure if you go in person sooner then later that mangement will be able to assist you, unless its sold out
Yeah just come pretty early so there is still a lot of seat selections and most likely they will let you change
Take it to the front desk an hour before the movie and they should be able to exchange your seats if there are any still available
Thanks! Your answer is awaiting moderation.