It's a little off-putting that this isn't a continuation in any form of the excellent Tron: Legacy.
Considering CLU (Bridges) was trying to accomplish what appears to be happening in this movie, one wonders where Sam and Quora are IRL. TRON (Bruce Boxleitner) should have remained behind to rebuild the Grid, unless Tesler (

) from "TRON: Uprising" was actively keeping CLU's plans running.
I guess we'll find out in six months.
The original "TRON" movie was groundbreaking for its use of Computer Graphics in a full-length motion picture. As a programmer who had worked with BYU's MOVIE software in the 1970s, I have been following CGI from the early days.
Even though the programs I was working on at the time "TRON" came out in 1982 were in the realm of data manipulation, the final output was created by a CRT vector drawing characters one at a time, advancing the photosensitive paper back and forth to create pages of text. A form of "Computer Graphics"…