Would the following phrase be considered positive or negative?

the still-inestimable contribution they have made to our shared history

positive

Would the following phrase be considered positive or negative?

for the film 's publicists or for people who take as many drugs as the film 's characters

negative

Would the following phrase be considered positive or negative?

adorns his family-film plot with an elegance and maturity that even most contemporary adult movies are lacking .

positive

Would the following phrase be considered positive or negative?

more valuable
positive