You know when I was growing up we had a dining room with one door on one side of a wall. It was enough. I love having a dining room but I also love to entertain and I like to eat in the dining room and then "retire" to the sitting room, lol! Call me crazy! Traffic flow isn't much of a problem if the rooms are next to each other. I once had a house with a hallway between the kitchen and the living/dining room area. That was a traffic problem because the kitchen was tiny and if I had to go in there, I disappeared from sight and sound of my guests and had to leave them hanging. Got better when SO moved in and could stay with them while I got stuff from the kitchen. I would be more concerned about the flow between where the food gets cooked and the dining room than between a sitting/movie room and a dining room. On the flip side, if you want to open it up, get someone good and have them save and re-use the wood that gets taken out in some creative way for the new doors. Can be done. Pocket doors rock. I love wood, and such fine stuff as you have is becoming rare. That's why the trend is to paint, so no one knows the difference between fine stuff and cheap stuff. Painted, it all looks the same.

Thank you, David.

what do you mean by "right now"???

What are you willing/able to do? What, specifically, are you unhappy with? Are you considering replacing the furniture? Paint the walls? Without more information it's difficult for me to make suggestions. However, I'd strongly suggest moving that chair away from the draperies/window. And also change the paint color. Is the room as small as it looks in these pictures? If so, that furniture, in my opinion, is far too large. When you say "Beautify my living room again" (again being the word I'm referring to), what did it look like before when you considered it beautiful? I think you've got a lot to work with. It would also probably be a good idea for you to post this also in the Home Decorating Forum.