Its a difficult one to value.
IMO, if you were going to create a review site for movies or blog styled review site for movies, you would be slightly better off using one with a search term for movies when you are dealing with the AU market, as generic or search terms appreciate value a lot higher than adding adding meme's like 'blog' to generic words. Eg, "good movies" -> "goodmovies.com". Gives you a search term and it passes the radio test of being a brandable name.
HOWEVER, if you look at like namebio or other domain sales reports, adding 'blog' to a very generic word performs reasonably well in the US .com market. So you can have something like internetmarketingblog, forexblog or other category killer domain names that are getting really nice prices. Indeed movieblog.com would have a huge value.
In my opinion, as long as we dont invent a new name for 'blogs', this domain should be increasing in value yearly as the au market gets tighter. At least increasing in value more than the $10 dollar reg fee. p/a
Where it stands right now, there isnt enough competition to add a lot of value by putting the word 'blog' suffixed to domains. But in 5 years, and with how fast com.au are selling out, (and internet adoption), who knows. Certainly I wouldnt suggest adding 'blog' to anything other than a complete category killer is a good idea.
Value, not sure. say $50 dollars to public, over $100 to somebody who wanted the domain name for a movie blog project now... but with small growth per annum. If you were going to develop a movie review site anyway it would be a reasonable name so use, so syndicate some RSS, spin or outsource a writer, add some automated ebay or amazon movie stores based on site keywords and sit on it for a pet project
My 2 cents, I'm only 1 year in though so just one person's opinion to another.