Except you have a right to show a film to "a normal circle of family and its social acquaintances" (aka not a "public" performance), and you have your fair use

Except you have a right to show a film to "a normal circle of family and its social acquaintances" (aka not a "public" performance), and you have your fair use rights. If a company uses some camera-based DRM scheme to take away that ability, you have a tension between your rights to the use of copyrighted works and the government-enforced anti-circumvention rules in the DMCA. This is another area (with closely related time-shifting and device-shifting) that companies will overstep their bounds on if allowed, in order to lock in consumers, and it is again via the enforcement of the government. That seems to fall under the area of things you oppose. If all we had to worry about was the inconvenience of a legal jailbreak, I would let lemming consumers twist in the wind as well. (all this is fairly theoretical, as it relies on someone getting this scheme to work even somewhat reliably, but the point stands for much of the copyright overreaches we face today)