The polarizing filter will reduce glare if you are shooting near
water or a big glass building.
That wide angle adaptor isn’t a filter at all. I just expands the
frame by using - essentially - a magnifying glass. I don’t like
those. They distort the image.
The ND filters are quite nice. I use Tiffen Pro Mist filters all
the time. I have a “half black” on my lens all the time and use
others depending on the lighting.
None of these items will give you the “cinema feel”. Excellent
lighting will go a long way to making your video look much