My daughter and I are going to a Hollywood Studios after hours event. Even though we can enter the park at 7pm, I’m guessing that we can’t make dining reservations in advance, because we don’t have park tickets for that day. Is that right?
You can make a dining reservation for ANYWHERE in WDW whether or not you have tickets.
But without tickets you will not be able to get into the park to get to your dining reservation.
However, in your case, where you can enter at 7pm, you’ll be able to get into the park with your After Hours ticket and get to any dining reservation you make for that time or later.