Let's increase your education as to what is real in martial arts, and what is movie-jutsu, shall we?
Tatsumi Ryu Heiho Tojutsu (the Iai is found from about 4:30 onwards). Noticably absent is any form of chiburi.
Tamiya Ryu, coming from the early forms of Hayashizaki Ryu.
Shin Muso Hayashizaki Ryu, also coming from the old Hayashizaki Ryu.
Sosuishi Ryu Koshi no Mawari... a system featuring one of the most practical chiburi methods around, as well as a friend.
Yagyu Seigo Ryu, the Iai system taught with Yagyu Shinkage Ryu
Shingyoto Ryu, also very well known for their Nito (two sword) waza.
Shojitsu Kenri Kataichi Ryu, one of the only systems to have an armoured Iai system.
Tenshinsho Den Katori Shinto Ryu, one of the most dynamic systems around.
Right. Now to the less real ones....
Ogawa Ryu, a modern creation known for stealing bits and pieces of legit systems. Note the lack of relaxed movement, the unnecessary footwork, and the stealing of both Katori Shinto Ryu Noto and Chiburi and the same from Sosuishi Ryu.
These guys have also stolen kata from other systems, in this case Katori Shinto Ryu, and completely fail to understand them.
Lord knows where this guy made this up from....
This man should not be let near a sword... this is completely invented ridiculousness...
Again, completely made up. Anytime you see these "twirly" actions, the person has no business being near a sword.
You know, I could go on, but here's a better idea. Check out this thread:
http://www.martialartsplanet.com/forums/showthread.php?t=103696
Or try jumping on somewhere like Kendoworld and asking the same questions... but, be warned, they won't be so kind! Actually, don't jump on Kendoworld... it wouldn't be fun for you.