Absolutely "B" but if you could do that with the same cast as part II that would be even better.

Keeping the speech engaging is going to be hard for the actor and the director

B without a doubt. Everything else is secondary. The message must be packaged well but no matter how great everything else is, without the message it is just another movie most will forget in short order.

I read the book years ago and have seen part I & II seemed to end where book did. Are you creating new material?

I have loved both installment thus far. That said, your efforts, marvelous as they have been, obviously suffer from budgetary limitation.
My suggestion would be layered revenue streaming. Perhaps somehow letting Gulch members sell marketing items on our websites and social media pages with any "commissions" going to production costs. Then, set sales quotas to reach certain levels of Exec. Producer status, then if reaching a high enough level, members' names either roll in on screen credits, or maybe are added to DVD or digital copies for our collections.
If something like this already exists, please excuse my missing it, if not, here's hoping you like the idea!

B.......
this is about the government, our government
it is like 1984
we, the people...

A
B
E
D
C

A. Casting in first was great. Not good in second
B. Very important to get the real message out.
E. Good director who understands A and B

B is most important because the message is the story.

A, B & D. I felt that all the actors/actresses were a bit too old, except Rearden. The message was missing a little because of missing pieces. Stick to the novel as much as possible! The special effects were alrgiht, but the plane in Part II was not believable.

Biggest 2 for me though were A & B for sure... need a believable cast and the novels version of the story for this third part to be a success!!

Thank you for asking!!

A. Casting
The casting of the first movie was much better.

All the above are important; however, I'll have to choose "A. Casting" as the most important. As much as it is practicable, the characters who are mutual to Parts 2 and 3 should be portrayed by the same actors. (Where it isn't practicable, consider trying to get the actor who portrayed the character in Part 1.)

B. get the essentials correct.
Do that by engaging the best subject matter experts. They can be accessed through ARI. Ayn Rand deserves the best representation of her revolutionary ideas and romantic presentation of them possible.

Both are essential - content and presentation - as she characterized in The Romantic Manifesto.

Don't wuss out on explaining the donashold character the pirate is important

E. Hiring the right Director - The director makes the movie

B. Getting the message of Atlas Shrugged right

Having the right Director would be crucial to this task and to a lesser degree A, C, & D

Good luck. I know you've had your challenges but P1 & 2 got the job done regardless of the casting.

E. Hiring the right director.

Atlas Shrugged II was a delight to see and participate in. All the actors, the script, and the filming were of top quality. Thanks. Keep;that vision and you will finally have that hit we all want.

Casting was great in II and that helped get the message across. Keep to the book as much as possible while incorporating things that make it cinematographly beautiful to watch. I am not one of those people who knows one director from another but maybe they are important for absolute success.

B.

Special effects in D were "better" but the reworking of the tunnel scenario was a mess. No railroad would have a camera looking at a turnout to show you it was stuck . . . the book's scenario of the faulty signal system was much more realistic. (Yes, I know something about railroads).

The gulch scenes will be critical. Pulling off the interactions with Thompson will also be key. Don't be afraid to have the "talking heads" accusation of the first movie.

B. Getting the message of Atlas Shrugged right.

Since I know you will get the message right, I would say casting. I think changing the actors was a big mistake. Also, I think calling people who have thus far supported and promoted this film "moochers" because they choose not to pay a monthly fee when asked to participate in your surveys is another mistake.

Getting the message of Atlas Shrugged right without compromise for artistic or other purposes.

B. Getting the message of Atlas Shrugged right

That's the only answer

B