I’m not quite sure what scene this is from. Maybe just the actors talking backstage? It seems like they’re standing directly under stage lights though.
Looks to me like they’re standing in front of the Death Star viewscreen. You can just make out the slanted lower edge of the screen area.
I had to turn up the brightness of my screen, but yes, it does seem like its the viewscreen in the background. So unless I remember those scenes incorrectly, this means that there’s a deleted scene where Tagge was present, presumably either before Leia enters the room during the destruction of Alderaan scene or some extension of the scene where Vader and Tarkin discuss the tracking beacon.
It’s probably this scene from the revised fourth draft:
INT. MAIN CONTROL ROOM - DEATH STAR
Darth Vader and the regional Governor Moff Tarkin stand before a huge screen that shows a million stars. Admiral Motti and General Tagge are standing with them.
The final check out is completed and all systems are operational. What course shall we set?
She has a great deal of control. Her resistance to the mind probe is considerable. It will still be some time before we can extract any useful information from her.
Perhaps she would respond to an alternative form of persuasion.
What do you mean?
I think it is time we demonstrated the full power of this station. Set your course for Alderaan…
Originally this scene came just after Luke finds the skeletons of Uncle Owen and Aunt Beru. But (with dialog slightly reordered and some of Tarkin’s lines given to Vader) it’s basically in the final film, but without any alternate angles.
There IS an establishing shot of the Death Star exterior, which isn’t in the script - perhaps the original idea was to use the wide angle of the bridge as the establishing shot, but that didn’t convey the idea of the scene taking place on the Death Star well enough.