I have been extremely fond of ABBA since I first heard their music -- in the 1970's on the radio! I must have reacted really emotionally to the radio broadcast, because my girlfriend at the time asked me: "Do you know them?". My feelings toward ABBA lasted way longer than the developing toxic relationship with this girl -- (She said she was a former stripper and had a child of 2 out of wedlock at the time.) Perhaps you get the idea.
Anyway: ABBA: This film tied together the bits and pieces of their lives and careers I'd gleaned over the years; but this film put everything into proper perspective and chronological order! I found the film to be very honest about four people who simply poured everything they had into their careers, families, and their live touring. I may be inaccurate here, but where else can you find 4 people with successful music careers of their own, who came together, got married (Boy-girl, boy-girl) some had children, got divorced -- all the while maintaining a world-renowned musical career that lasted about 7+ years? I don't know of any other. As a bonus, the girls were/are world-class gorgeous!!!!!!!!!!
I thoroughly enjoyed this film; both emotionally, and as a documentary. I encourage you to see this film, perhaps even if you are too young to have ever heard of ABBA! You MUST have heard at least "Dancing Queen" -- in now even plays in supermarkets as background music.