I just wanted to post some seating info as I wasn't able to find much online when I was buying tickets.
We were at the Orpheum for a movie with orchestra accompaniment (Home Alone.) We sat in the third row downstairs. The stage is low enough that the kids could see, even in the front row. However, there is a bit of interference with the conductor's head, some of the musicians, and the lower edge of the screen. Also, from the front section, you can only see the front rows of the musicians, we couldn't see the horn section at all or the piano. Just the strings. I think the best seats to observe the orchestra are about halfway back on the floor, as you get a bit of elevation and you can see the back section of the stage. Or the front of the balcony/dress circle would be a good view of everything as well.
I also wasn't sure if the third row would be too loud for the kids, but it was not an issue. The show was very enjoyable and the kids had a good time too. The bar had small bags of popcorn, chips and candy along with wine, beer, cider, and soft drinks. Tipping is not allowed, but the price seems to include it.