The works of Stephen King long have been adapted to the big screen, but for the first time, his Dark Tower series will grace theaters across the nation.

“The Dark Tower” officially opens Aug. 4, but fans of King’s literature have been waiting for this release date since at least 2007.

This movie, which has been 10 years in the making, has been the center of much speculation about how the content would be rewritten for the screen.

The truth of the matter is that The Gunslinger series is a complex story, spanning eight books, but also containing content from dozens of King’s other works.

Whether King intentionally created his own universe or it happened organically over the course of many years, the Dark Tower seems to be the center of all things.

As a fan of King’s writing, I have been very concerned that in adapting this story to the big screen, the writers will lose many elements that made the story so good.

To begin with, like any good story does, the books created an image in my head of the main characters.

This picture was very clear to me, but apparently very different than the filmmakers’ vision.

When I heard Matthew McConaughey was cast for the movie, I was so excited that he matched the picture of the Gunslinger that had been rooted firmly in my brain for years.

And then I found out he was going to be filling another role, and I was confused.

I have a hard time thinking of McConaughey as a bad guy in the first place, but in this particular case, I couldn’t wrap my brain around what the filmmakers were thinking.

Then I heard the role of the gunslinger went to Idris Elba — and in my head, the actors and their parts should have been switched.

But, having now seen the trailer, the casting director might have had a vision beyond my current understanding.

It makes me wonder, though, how many changes we might see in this movie. In its 95-minute runtime, there will be plenty of opportunity for alterations.

Or omissions — since it is highly unlikely that the entire story of just one book can be told in that small amount of time.

I did notice that two of the Gunslinger’s companions are not mentioned in the casting or trailers.

But another thing I noticed was how epic the trailers look.

Elba sounds like he came from the world in which his character lives, even if I think his face doesn’t match the Clint Eastwood-type of Gunslinger in most of the art based on the novels.

And so I wait for the film to be released — patiently, but still somewhere between dread and excitement.