I was watching Batman Returns the other night and noticed that the barebones of the plot for this and TDKR are the same: Penguin emerges from the underground to destroy Gotham.. deals with corrupt businessman in process.. same thing as Bane.. Catwoman has her own agenda and works for both sides (it's like they split the Catwoman role into two in TDKR, with Talia having most of the romantic scenes)... Also the ballroom sequence reminded me a lot of Batman Returns. The fact it's set during winter, etc..
Not saying they are the same or TDKR is a rip-off, but I just noticed a few similarities. This has probably already been discussed, though.