Answer: The two adjectives used in the given sentence are "unusual" and "featureless."
Explanation:
The word "unusual" refers to something that is not typical or common, and in this case, it suggests that the preview for the foreign film was not what the viewer expected.
Instead of showcasing the actors, the preview took a different approach, which caught the viewer's attention and made it stand out from other previews they may have seen.
The word "featureless" refers to something that lacks distinctive qualities or characteristics. In the context of the sentence, it suggests that the preview did not have any visible or prominent features, such as the actors who typically appear in movie previews.
This lack of features could have been intentional, perhaps to create a sense of mystery or intrigue about the film.
Overall, the use of these adjectives in the sentence helps to convey the sense that the preview for the foreign film was unique and memorable due to its departure from typical movie preview conventions.