More than just grain. Instead of using presets I would suggest first taking it into Adobe After Effects (If you can) and converting your finished video file from 30 frames per second to 24 frames per second. If you can't oh well. There's more. In premiere pro, select your video and go to 'Video Effects'. Then go to 'Adjust' and find Brightness/Contrast (this may be under Image) anyway, turn up the contrast a bit. Then go to something with 'HSL' on it and turn up the saturation to about 27. Tweak it to your liking, of course. But this I find makes it most like film. It's an effect I use often myself, making no-budget films and all.