Sounds I will use in my opening film.

      

I will use diegetic sound this is where:

voices of characters 

sounds made by objects in the story 

music represented as coming from instruments in the story space ( = source music)

Diegetic sound is any sound presented as originated from source within the film's world 
Digetic sound can be either on screen or off screen depending on whatever its source is within the frame or outside the frame. 
I will use diegetic sound when Ash and Matt are tapping and the keyboard on the laptop and banging the pen on the paper to represent Ash playing the keyboard and Matt playing the drums while in a lecture at college I may also add sound effects to make the taps and banging stand out more for my audience.

I will also use non-diegetic sound this is where:
narrator's commentary

sound effects which is added for the dramatic effect

mood music

Non-diegetic sound is represented as coming from the a source outside story space.

I will use non-diegetic sound while I have a background song in the back of my film to give it an upbeat happy feeling, I feel that this describes the feel mood perfectly. I will also use it when I add in Tay's voice over that describes how they are all feeling about the current situation they are in.