No, it's not a good thing (Score 1)

If copyright ends, there goes the enforceability of GNU GPL too (among other licenses). The copyright system is the framework in which it lives. If there's no copyright system, for example the Linux kernel would become another cadaver for corporations to scavenge upon, taking advantage of something they had no part in creating in the first place.

So no, it is not a good thing if copyright ends.

Also, I don't see the reason why people download movies anyway, as most movies are crap and it's just a waste of time to watch them. There's actually very few good ones (i.e. worth paying for) that you can pay for them - you don't need to warez them. If you want to see the movie with less financial risk than buying, just rent it from the local rental store, the risk is few bucks.

I'd rather see positive changes within the copyright system. For instance the "copyright exists after N years after author's death" is really unreasonable. There's more such points of course, but abolishing the system altogether would do much more harm than good.