Are you seeing a movie theater for a new computer game there is an American Eagle probably flying in the background of the advertisement what propaganda technique is the commercial using

The propaganda technique that the advertising is using is that of influencing the people by associating the feeling of national integrity with the brand.

Explanation:

The American Eagle is a symbol of the national integrity of the United States and is perceived as not just an ordinary bird. American associate strong feelings with such symbols of national importance and take pride in using brands or products that endorse such symbols of patriotism.