Here is a documentary that focuses on the scientific realism of batman's technology. I hope you enjyoy.
Part 1
http://www.youtube.com/watch?v=_BXPOENATC8
Part 2
http://www.youtube.com/watch?v=IDbhlRtjTCo
Part 3
http://www.youtube.com/watch?v=_elhgoSX5Qw
Part 4
http://www.youtube.com/watch?v=ZfmdcDOzx7g
Part 5
http://www.youtube.com/watch?v=jiyjbQHTWcg
Part 6
http://www.youtube.com/watch?v=rBgG5B3yBYg