Determination of a 9 yr-old's Shows/Movies Ratings

Purpose: To find the almost 9 yr-old's view of "Wicked" without being too conspicuous.
Assumption: If asked directly, the respond likely will be "it's ok". Comparison needed.
Observation: On edge of seat most of the time during the 2:30 hour run time of "Wicked"

When asked to rate the following shows/movies from a scale of 1(bad) to 10 (perfect), here're the results:

Harry Potter Movies: 10
How to Train your Dragon: 9
Wicked the Broadway musical: between 8-9 ("it's good, but too long")
Up: 8
Wall-E: 7
Vienna Boy's Choir: 6
Transformer: 6 ("too confusing")
Spider man (the latest one): 5
Finding Nemo: 3
Coroline: 2 (already knew he didn't like it - the theme IS too dark for an 8 yr old boy. Prob. different for a more mature 8 yr-old girl)
Indiana Jones: 2 ("Why?" "Because it's about Alien and not IJ himself)"

Conclusion: Rating of quality shows better than expected - likely on the right track to be a learned young man :)