My family of 8 wants to sit together. Will it be difficult to get this many seats together!

Probably. Or they will be all the way at the back. Also check the ticket limits, you may not be able to buy 8 tickets. Can't remember what show, but I saw one that had a ticket limit of 6. You might want to try for 4 and 4 in the same section. If the limit is 6, someone else will have to buy for you anyway. Good luck!