A film is always going to have a different impact to that of a novel or a play. There are some unique instruments in a director’s toolbox that are out of reach for writers and playwrights. You can mention these points and contrast them to how these emotions/interactions are portrayed in other texts. 

Hooper uses unusually wide lenses. This visually accentuates Bertie’s anxiety and entrapment.

Close-up head shots also accentuate the extent to which Bertie feels exposed.

In certain scenes, a conversation is depicted as a series of shots with just one person on screen at a time. This creates an illusion of an opposition or a disagreement. This feeling disappears when the two characters are filmed side by side.

Most of the film is shot indoors, in cars, long corridors and cellars. A claustrophobic setting heightens the anticipatory anxiety Bertie has for speaking.

The countdowns and empty recording rooms add to the atmosphere of examination-like anxiety and also loneliness and vulnerability.

The surroundings are either oppressively opulent or depressingly bleak. The consultation room provides much needed refuge.

The body language of the actors is instrumental in showing people’s feelings towards each other. Logue is exceptional in this sense. While one can describe body language with words, it really just needs to be seen. Similarly, the soundtrack is uniquely useful to a director in creating a peaceful mood or developing a build up to a climax, such as speech.

The lighting used in this film is mostly modern. This is unusual for a period drama, but it makes it easier for the modern viewer to relate to the film.