Would the following phrase be considered positive or negative?

the film unfolds with all the mounting tension of an expert thriller , until the tragedy beneath it all gradually reveals itself .

positive

Would the following phrase be considered positive or negative?

undeniable enjoyment to be had from films crammed with movie references

positive

Would the following phrase be considered positive or negative?

is hindered by uneven dialogue and plot lapses

negative

Would the following phrase be considered positive or negative?

the percussion rhythm , the brass soul and
positive