The issues above comes into having a 10 year old involved as a member. If its a problem, I apologize.
Najemikon, the reason Ideathy dictated Singin' in the Rain to you is mostly because it is the only one of the films she's seen all of. If this is a problem, I can help her choose a different one. Although I would say that Singin' in the Rain is good because of two main reasons: It is a funny film about Hollywood and because it exudes joy. Perhaps, like other musicals, it is overacted, but it is worth it for Gene Kelly's performance and the chemistry between the three leads.
As far as The Secret of NIMH and Kung Fu Hustle, yes, I approved of both because while there is deep tension in one and strong violence in the other, Ideathy is able to separate fantasy from reality and so I see no long term harm.
Assume that whatever Ideathy does on the forum it is pretty much under my supervision. So blame me for it all.