Why do dinner theaters often do it ? Why not show the movie ?
I’ll tell you why, there’s something about a LIVE performance.
And just because the movie was, pretty much, about as perfect as a movie gets. . . does not mean it can’t be improved on.
Example: “The Ten Commandments”, the 1953 version with Charlton Heston and Yul Brynner. . . was a REMAKE of the original 1923 silent version. I expect, that some day, someone else will re-make it, likely in full 3-d holograms. .
and take God out of it.