Pretty much rubbish or so badly made you won’t want to bother. Sometimes there might be B-Grade film that becomes a cult hit, but I’d expect that to be rare.
Some redeeming features, maybe enough to be enjoyable for some, but overall lacking in something vital to a good all round experience.
A good movie, worth seeing, but probably it either won’t set your world on fire or it’s all about the entertainment value.
Exceptional film, a must see, some or all aspects in the film are a real treat.
An absolute masterpiece, a genuine treat, hardly any flaws or some that are more than compensated for. To miss this film would be a travesty.