Turning up the projector lamp does nothing
When Ben is in the projector room while Ripburger is giving his speech, turning up the projector is supposed to cause an effect on the film which causes the speech to stop.
If you do it on the Remastered, the speech DOES stop, but there's no visual effect to give the player the cue that it's ruining the presentation.
Unfortunately this won’t be changed at this point.
Andrei Kakhanov commented
I can add screenshots for visual assistance (in case you need it):
"High light" projector mode in Remastered graphics
"High light" in original graphics: