Basically what it says on the tin. Some movies are very good, others very bad, but most are just some shade of mediocre. They could be successful in the short term, even get pretty good reviews, but ultimately they are more-or-less forgotten.
The goal of this thread is to ask what movies that were considered okay instead could become notable in the long run. For instance, I could imagine The Adjustment Bureau or maybe Limitless becoming Fight Club or Matrix-level cult films with a few changes in production. If done better, Willow could have been to the late 1980's 's what the Lord of the Rings movies were to the early 2000's.
Thoughts?