It wasn't realistic. There's nothing realistic about TDK's Two-Face, or landing on a car unscathed (with only a half-opened glider cape to slow the descent), or the tumbler having the batpod shoot out of it, or the batpod flipping a semi over with some cables, or computer technology that allows someone to get a fingerprint off of a shattered bullet, or at least a dozen other things I can think of. I'm getting tired of people calling this film realistic when it's anything but. People don't walk around in real life with exposed muscle tissue and pieces of their skull sticking out (all of this without painkillers, I might add).
To answer the question posed by the topic, no, I wasn't bored with it. My eyes were glued to the screen the entire time. I do think that some of the scenes could have used some breathing room, though. There was so much going on in that 2 hours and 45 minutes that it was a bit of an exhausting experience. Overall, I was still pleased with how it turned out, though.