The only thing I would point out as being inaccurate is the DCP part.
If you use Premiere Pro CC, you can create a DCP from the comfort of your computer, for no additional money, up to 2K.
My film NaturePlay ( natureplayfilm.com ) just premiered in Thessaloniki with a DCP I created on my Macbook Pro.
A part that is missing is the "Deliverables"
Depending on who you get for distribution, you'll need to provide many different versions of your movie. Some without any graphics, some without any voices, but with all sound effects and so on. There's more, this is just scratching the surface. Make sure you do your homework.