sorry I dont watch blockbuster special-effects movies all that much. But we do try to copy and make a grand special effects laden movie which are total duds like Dhoom,Krrish etc. Moreover Hollywood movies are short and Indian movies have an interval which breaks the momentum of the narrative. Why dont you watch hollywood classics like Godfather,American Beauty,Babel BloodDiamond etc and then compare. I have also seen some good Tamil movies too like Thevar Magan, Nayagan etc, but such movies are few and far between. Most of the stuff churned out by Indian film industries is just escapist stuff