Script/Dialougue

The directors leave 9 speechless for a good half of the introduction, using the excuse of him not having a voicebox and as a tribute to the short film, however instead of making everything dull and boring it does the opposite, creating this extra focus on the environment around 9. As so much of the introduction is silent, any noise becomes emphasized and echoed. The subtle diegetic sounds, such as his footsteps, or the creaking of the old house or the wind outside batting against the window resonating creates the feeling of this expansive but dark place, just like a lifeless cave of sorts even though we are only in a room, we feel it from 9's perspective and think the room as being large and spacious. All these techniques used to help us feel what 9 feels is important as this whole movie really is about the journey 9 takes and immersing us right from the beginning is vital.
Also I think the director likes to keep the usual environment of the ragdolls to be quiet as it gives the action scenes much more impact, the screech of the Winged Beast or the screams of the B.R.A.I.N slice through the "peaceful" safety 9 and the others try to find.

Long shot of the room 9 awakes in

When 2 installs the voicebox the first word 9 speaks is "friend" reflecting on thier brief relationship, as if they were close friends a long time ago meeting up again. This rapid development is significant as it runs through the whole film, even though everyone are strangers to one another they all ignore differences to survive, reflects on a true selflessness in most of the characters in the film. This positive relationship, however soon is shattered when the Catbeast enters the shot and 2 is stolen by it, trying to protect 9.  This brief interaction allows us to understand the motivation 9 has to goto the factory later on in the film, we along with 9 feel the guilt of 2's sacrifice and collective agree that saving him is the best choice.
At these conflict with the Catbeast we feel that the ragdolls have no chance against this, and again we feel worried for 9 and these ragdolls, being able to do nothing but hide from it, which increases the valiance as the team of dolls work together and take the cat down, which only reveals the true evil that exists dormant in this world.

2 reaches out to 9 just before being kidnapped