The only two of these parodies I recognize on sight is post #157846, of Kiki's Delivery Service, and Futo as Charlton Heston in The Ten Commandments. Some help adding tags would be quite welcome.

2 - Akira Kurosawa's Yojimbo

Drawing a blank on the others

Run Naz, run!

Where is the 10?

12 < Izayoi Sakuya

Most of these may or may not represent parodies of actual movies. The theme is mocking the various style of Hollywood movie posters. The main page describing the phenomenon can be found here. (Warning, copious amounts of Japanese). I've include a translation of the various items below.

1. People standing on the beach, and the background has close-ups of faces floating up in the sky
2. Facing away and slightly turning back towards the viewer (Often with a weapon)
3. Two people standing back-to-back (Often a romantic comedy)
4. In a bed
5. Close-up of an eye
6. Blue represents the majority color
7. Monotone orange accents (Usually action films)
8. Someone is running! (Suspense stories, often with dark blue)
9. The Title between a pair of standing, opened legs
10. Collage of a face made of smaller bits
11. The heroine is wearing a red dress (Regardless of age)
12. Ripping off famous movie posters
13. Close-up of a character's face

BrokenEagle98 said:
*snip*

Amazing and incredibly accurate sources. Good job.

BrokenEagle98 said:
3. Two people standing back-to-back (Often a romantic comedy)

Was about to call out on Mr. & Mrs. Smith, but then I remembered they did the exact opposite. Still, those links are hilarious and somewhat saddening, were I to allow myself to care.