Personally I go with a 5 star.

5 absolutely shut up and watch. No Country for Old Men.

A 1 would be avoid at all cost. Boogeyman (2005) Still remember, pushing through it. At least to see the Boogeyman. Wow, just wow.

Although a movie should be rated twice too. As a general movie, and then on a genre type. In particular, with horror movies. You sometimes have to let things slide.

Ps Boogeyman is just terrible. As a mainstream and as a horror film.