maybe one of the reason they put the filter is to make sure everyone still goes to movie theater to enjoy the best audio and pay for the blockbuster tickets. then buy another copy of DVD or BD for home use.
But unfortunately, in Malaysia, we do not have a cinema that can produce good PQ/AQ like those in HongKong, USA, Europe, or maybe our next door country "Singapore".

In East Msia, I've given up hope for cinema and cineplex here. Even our newest cinema "MBO" gives us crappy PQ and AQ 80% of the time. I've been there 4 times so far, everytime i went, there will always be problem with projected images like vertical black lines, broken surround speakers that kicks in whenever if feels like kicking in, bass that sounds like the ah beng cheapo home made sub from cow skin or some sort.

I'm buying BD like most of you here in lyn n expect to get good PQ/AQ but now a "filter" to cut us off?

What is the benefit of putting in a filter? just to protect those LG, Samsung or Sony brands HTiB from blowing the sub??

...really disappointed.