Despite the negative press on this film, I was pleasantly surprised at how good it was.
I have studied a great deal about the Casablanca Records story, so I know that the movie took a great deal of "artistic license" in terms of timelines and factual accounts of certain events. But the film wasn't meant to be a documentary - it's an amalgamation of events. Yes, the sequence of events with KISS was a bit off and the music didn't match the time line. Yes, the KISS make-up was inaccurate (because Gene Simmons and Paul Stanley refused to give the producers permission to use the KISS makeup designs). Yes, there are many pieces where the director took license to make the story more adaptable to the screen. So what?
The production is phenomenal - great costumes, great sets! The cast did an excellent job in portraying the characters, especially Jeremy Jordan and Lyndsy Fonseca, who was outstanding as Joyce Biawitz.
All of this makes for a reasonable account of the story of Casablanca Records without claiming to be an historical account. If you want the historical version, buy the book "And Party Every Day: The Inside Story of Casablanca Records" by Curt Gooch, Jeff Suhs and Larry Harris. Otherwise, sit back and enjoy the ride.