Problems with the soundtrack

I had previously decided on an opening sequence and base track (playing in the background throughout the film) but had not really started looking properly for sound effects. The first few sound effects that I needed, I found quite quickly, however the further into the film I went the harder it was to try and find sound effects that are suitable. This meant that I will have to spend more time than anticipated finding these, and if I can't find any suitable, I may have to create them myself.