To create your site I'd use Content Management System (CMS), to be specific it would be the latest Wordpress (the most recent version is exceptional with what they're now doing with it). As is used to power many sites run by big international companies, such as: CNN, ebay, Forbes, Pepsi, AMD, Ford, etc.... & I'd bind in with this appropriate plugins such as for movies & any others you require.
Why you should hire me:
a) I'm located in New Zealand where I was born and as such I am a native speaker, went to the university here at Auckland for my BSc(Math).
b) I'm an expert on SEO/SEM, my advice can be invaluable for the growth of your site.
c) My expertise, I'm passionate about this. I went to WordcampNZ earlier this month and I'm the organiser of the Auckland WordPress UserGroup.
d) I'll freely provide via skype for a couple of hours instruction to you (or whoever your webmaster is) on how to use the CMS, which will largely get rid of any on going costs to keep the site up to date as you can do it yourself.
e) If you wish we'll be able to have an intermediate meeting along the way, so you can quickly and efficiently provide input on the direction the project is forming.
Last but not least I'll toast you a beer at the completion if you are ever in NZ! As I'm not above bribing ;P