There is an effect in Illusion FX which comes with express pro called film grain. it looks fantastic on its minimal settings.
if u really wanna get the film look going colour correct with the colour wheels in the mid tones moving around to a bluish or yellowish look. i also do a fluid film effect to give it that progressive look first and then it all looks sensational. the fluid film effect doesn’t work with other effects so do that first then do a mixdown of the clip and you can do whatever you want.
or you could look at getting magic bullet it does heaps of stuff i love the post contrast quality.