The movie is the best in the Index series, but that isn't saying much. Animation is improved, but it still bears all the sins of the series: Constant exposition, convoluted plot, and the same tired ecchi jokes. It also ignores the ending of Index II despite taking place right after it.
An improvement over the first Railgun season! Railgun S takes Misaka's arc from Index and properly develops it and gives it the weight, drama, and time it deserves.
A remarkably dull sequel that progresses slowly with various non-sequitur arcs. When not in a monotonous fight scene, it's the same tired “jokes” of accidentally seeing a girl changing or naked, over and over again.
A Certain Scientific Railgun is a much better counterpart to Magical Index that feels like an intriguing cop show set in an X-Men-like universe. It’s still got a lot of anime pervery sins though.