If you play with the colour (desaturate slightly), add a bit of guassian blur and then do a self contained quicktime export, you can add filters. Add some dust and scratches here.
The effect is nowhere near as good as Nattress', but it can be toned down enough to help with the simulation.
So - select your colour corrected clip, and then go File > export > Using quicktime conversion > format - quicktime movie > options > filter > special effects > film noise > pull all the options down low so they aren't too cheesy.
Actually - I just went and checked this workflow, and I realised there is also the option to change the colour there as well - faded film or faded 1930s, etc.
There is also grain in the generator menu - render > particle noise with a good blur on it often works well.