It's the best reason I can think of why Brooks is not in Hollywood films, which as I said, the query stated in the OP. TV stars don't really got exposure, other than being in shows with high ratings.

i still stand by my point, that TV to movie transitions coast on their TV success. George Clooney, Will Smith both did. Brooks cannot. again, as good a theory as any.
If I understood this post,
I haven't seen you cite one as yet, incidentally, or contribute in answering the OP's point.
Cite what?
I'm done with my reports for this quarter, dude...
And, we
are stating opinions here, despite what you may think....
Of course, some of your posts were way out there; and I obviously was playing along...but, yeah, we just giving opinions. (Of course, as I am looking on entering television as well as the movie biz, I would possibly know a little more about the subject; something I
can state as fact).
Oh, yes...I'm sure Econ classes are going over this very thing right now:
'Why DS9 was not the successful show that TNG and TOS (although poo) was...'
And part II:
'Why Avery Brooks got the wrong end of the stick...'
Oh, what a world we live in...
Well, any good economics teacher would say that studios would take actions to make the highest demand and thus revenue. if this includes placing already known actors from commercially successful TV shows in films, then so be it.
"...studios would take actions to make the highest demand and thus revenue. If this includes placing already known actors from commercially successful TV shows in films, then so be it..."
That was pretty difficult to read; but, if I understood that paragraph correctly...here is my answer:
David Caruso was pretty popular on the 'popular'
NYPD Blue, but was in a string of flops or not-so-critically films. He is now on
CSI: Miami.
On the other hand, Avery Brooks (who comes off as a private individual, not so much into the 'Hollywood thing') was in the light-action romp 'The Big Hit'...and the powerful 'American History X'...
Despite what you might say,
I thought he was one of the individuals who made that film work.
Now, you can hold your own opinions on the man based on his character from a fictional sci-fi show; but, in interviews, and what I've seen of the man....he comes off a bit more than 'Benjamin Sisko.'
That was
a job. Star Trek is not his life. His interests are possibly other things, namely theater...
Will Smith was popular due to 'Fresh Prince of Bel-Air'....and he was doing so-so work in films. It wasn't until ID4 did he really hit it big.
If we were to go back to Tom Selleck. Uh, Selleck was big in the 80s....(I've seen him turn up in a few things lately; although, that doesn't mean that he's not working).
Again, despite what you may think, not everyone is into the Hollywood lifestyle...
Now, if we were to go back to Shatner and Stewart. No, it is
not primarily due to Star Trek, IMO. I think Shatner had a resurgence of popularity due to cameos on shows,
Boston Legal....and Stewart (although, known as Picard) had a little more popularity due to the X-men films...
I still wouldn't say they are 'A-list'. Just because they are on Star Trek:TNG, TOS, FBI, or CSI, does not make them 'A-list'. (Just because an actor is popular within Star Trek fandom doesn't mean the world at large has the same outlook of popularity).
If we are to say who is actually 'A-list' that came from television, we have:
*Morgan Freeman
*Will Smith
*Tom Hanks
*Denzel Washington (who was in movies, but a little known on television due to 'St. Elsewhere'...then grew to popularity in movies)...
Maybe even:
*Michael Douglas
...And there are probably others.
Still, even though those individuals listed were on popular shows, they still had to prove themselves in movies, and
work for their fame....(or they were in movies that happened to hit is big).