Both eyes. That Loki! is also Hydra and Odin is giving Asgard to Thor, so they really have one eye apiece and Loki has both eyes and a fan girl army so.
These films will give you a lesson in iconic style, and then some.
The top ten film schools in the world. An article looking at how to find the best film school or university course for film education. Plus a free download of the best film schools by country. Filmmaking | Filmmaking Tips | Film School