Well written, but somewhat lackluster instalment. 
 Pratchett gives us his view on hollywood and the film industry. Its fun to try and find all the clices, thorps and hidden references twisted just enough to fit in the crazy discworld. Other than that I must say that the characters and the story was somewhat flat. Characters are just kind of there and do their thing, but I found myself somewhat uninterested about what exactly happened to to them most of the time. 
 In summation: It's Pratchett so the writing is fine and the working of the discworld is always interesting. But beyond that Moving Pictures is just a bit average.