Both the album and the film are fantastic. A friend of mine is a big fan of the album and plays it whenever he DJs. People not familiar with the production often laugh when they see the title. They stop laughing when they hear the music.
My one caveat is that I think it is a fairly advanced concept of the Jesus story in terms of how it presents Judas, and perhaps more for those who are already well versed in the faith and want to explore another dimension, than beginners who are just figuring it all out. Also, the film does implicitly suggest that Mary Magdalene was in romantic love with Jesus, which I think is what got a lot of people bent out of shape about it backintheday, though nothing blasphemous or bad happens.
My parents were not big on either this or Godspell and would not let me watch any local productions of same growing up. I think the Jesus Christ Superstar movie finally played on TV when I was in high school or thereabouts and I watched it without any parental opposition at that time, but I remember being very confused by the Judas storyline. I am okay with it now but the idea of Judas as seemingly a good guy predestined to be an evil villain was offputting. I also couldn’t help noticing that the actor playing Judas was black and Jesus was white, which made me wonder if the producers were making a racial statement and if so what was it exactly. I continue to wonder about this since I read Ben Vereen played the Judas role on Broadway.
Edited to add, I am however very sad that neither Ian Gillan or Murray Head performed in the film. Everybody I know thinks Gillan’s performance of the songs is the absolute best, and I think Murray is great too. (plus I loved “One Night in Bangkok”)