Read it years ago. Know the big themes, but have forgotten much of the detail.
Same for me -- but the read is REALLY different this time. I highly recommend a re-read of Ayn Rand's Atlas Shrugged with today's situation in mind.
My guess is: the movie being made "from" this book will not be at all true to the book (if the "Office of Morale Conditioning" or modern equivalent allows the movie even to be released). Too many citizens subjects would be angered by the parallels. Buy a copy of the book now, read and contrast with the movie later (if released).