Some good reasons, especially regarding competition with other forms of entertainment, which is one of the bigger factors IMO. But I can't believe he didn't say anything about sequels. The top 7 grossing movies of this year were all sequels (http://boxofficemojo.com/yearly/chart/?yr=2011&p=.htm)
On the one hand, this suggests that sequels are successful. On the other hand, the total revenue of those sequels was much lower than other top films of comparable prior years (just change the year in the URL and do some custom math), and if you account for ticket price inflation it's even worse. I think this points to studios not wanting to take on as much risk; sequels (and the proliferation of remakes... another Superman series already? really?) are low-risk because there's already some sort of existing awareness/fanbase to tap into... but I think they are also proving to be lower reward as people get burned out and don't care about going to see these sequels/remakes because the other reasons (prices, experience, etc) outweigh existing possible interest.
On the one hand, this suggests that sequels are successful. On the other hand, the total revenue of those sequels was much lower than other top films of comparable prior years (just change the year in the URL and do some custom math), and if you account for ticket price inflation it's even worse. I think this points to studios not wanting to take on as much risk; sequels (and the proliferation of remakes... another Superman series already? really?) are low-risk because there's already some sort of existing awareness/fanbase to tap into... but I think they are also proving to be lower reward as people get burned out and don't care about going to see these sequels/remakes because the other reasons (prices, experience, etc) outweigh existing possible interest.