Potential discounted movie tickets are available at:
Bulk Tix - http://www.bulktix.com/
Discount Movie Passes - http://www.discountmoviepasses.com/
Get1Free - http://www.get1free.com/
MovieBuzzed - http://www.moviebuzzed.com/
Movie Ticket Savings - http://www.movieticketsavings.com/
Of course, the most convenient way is to always carry your frequent movie-goer card from your favorite theater and accumulate those points for free tickets and concession food & beverage.
On a separate note, non-movie daily bargain links (50-90% off) are now listed under "Hot Deals" on the right-hand side of the blog by "Top Resources." I personally have used the majority of these sites for all kinds of services and saved tons.
Happy savings!