The Broadway theatres usually reserve certain seats off seats like for when a celeb suddenly wants to see the show, the press want to come & review a new star in the show, the producer wants to have someone see it, or as stated, for a family or friend of one of the stars, etc. These seats are usually in the center section of the Orchestra, on the aisle, rather than all the way in the middle. They range anywhere from the 3rd row to about the 10th row back.
This allows someone like Brad Pitt & Angelina to discreetly & quickly sit down for the show once the lights go down, before the curtain goes up. Likewise, they need to be able to make a hasty exit before people start clamoring all over them, instead of being trapped in the center, unable to get by anyone. Same for a theatre critic who needs to get out & write his review for the 11 o"clock news.
I'm glad you got in on Lion King.