The quality thing, whether it is high or low, is not restricted to this genre or films in general. Producers approach studios and pitch their ideas. If studios bite, the producers get funded. That is how all movies and television shows, great or trash, get
in production. Some ventures, like
Batgirl for instance, go unfinished, but those are the exception and not the norm.
Of course, production
quality hinges upon a multitude of factors. Screenplay. Direction (and hopefully a dedicated director). Acting. Set design. Special effects. The lists goes on.
Quality control is usually implemented in
post production after a film or show has been completed. QC tries spotting technical nuances like identifying people or objects that are visible in a camera shot when they shouldn't be or audio not in sync with actor's lips, etc. That's when sound editing, etc., kicks in.
The actual quality you and other members of the audience seeks happens
before or
during production. Was the screenplay great, good, fair or poor? Did the director have a great vision or coordinated well throughout production or drew out the best in the actors? Did the actors BECOME their characters or did their jobs well enough to get paid or OVERacted their parts? Were sets poorly conceived before they were built? Who was contracted to create special effects? Did they have time enough to make the best finished product? Was enough money pumped into special effects to get superior output?
Getting quality movie and television end product is not a simple process. It is not automatic. It is hard work, dedication, dollars and, in many cases, time. Studios care about maximizing their fiscal year and budget control. They "trust" producers to produce optimal product based on proposals they sign off on. Sometimes what they sign off on is impossible to deliver as high end product. Sometimes their interference with production craps on what they are paying for.
There are many reasons why quality movies and shows are high, average or shoddy. It would be necessary to investigate what may or may not have happened throughout the production process to understand how quality was impacted. Yet, these are reasons why studios do cling to re-booting "safe" projects to get as much money back as possible.
I will end my longwindedness with a request. Please please please do not mention Alicia Silverstone again as Batgirl. I try extremely hard to forget ALL the movies that came out between
Batman Returns and
Batman Begins. Be merciful. My brain already hurts too much.