The application of colors in cinema means describing a mood and communicating a matter or question. Color is important for directors of different kinds of genres and is able to influence how a movie is watched and perceived by a viewer. Additionally, it can totally change and influence the feelings and emotions of the person watching.
A famous director that many will think of when it comes to the play of color is Wes Anderson as he uses color fearlessness and bravely.

Wes Anderson

Examples of his color usage in his movies
While the Anderson movies portray a rather joyful mood with a yellow, green, and orange layer, director Stanley Kubrick uses geometric forms and colors like white and black in order to make people a bit more uncomfortable and concerned. This unfriendliness was not only mostly created with colors like white, but also jarring reds.

Movie cutout of a Stanley Kubrick movie: A Space Odyssey (2001)
Denis Villeneuve, director of the renowned movie ”Dune” on the other hand uses bright and neon colors to make the movie and image more significant and strong in terms of emotion when it comes to its characters. This specific film director for instance uses colors like blue as a sign of privacy and red for exploring and detection. https://www.indiewire.com/features/general/denis-villeneuve-color-theory-video-1201923620/

Movie cutout of Blade Runner by Denis Villeneuve:
Telling stories through color and image.
Other few examples of well-known directors who value color in their movies are Tim Burton, Baz Luhrmann, and Nicolas Winding Refn.
In addition, David Lynch uses daring and expressive colors in his surrealist imagery.
https://movieweb.com/movie-directors-play-with-color/#wes-anderson
The rationale for observing how those filmmakers work is that the envisioned imagery projection and film that should be installed within hospital spaces, and the consideration of colors can have a powerful effect on emotion. Taking this knowledge from experienced artists who know the effects of color can be adapted to my hospital environment experience and can have an influence on people’s moods just in a similar approach.