Unfortunately I have to correct several things about this movie which Putte-4 (glenn_78bike@hotmail.com commented on previously. First of all, Sven Ingvars were by no means Scandinavia's most successful pop band during the 60's and early 70's. They weren't even Sweden's major pop band, let alone Scandinavia's. In fact they were not labeled as a pop band at all, since their songs all were performed in Swedish. More apt would be calling them an entertainment band for a more adult audience.
Neither is this film their second film at all - it is their first and only.
The plot is awful; or rather non-existing. The script is poorly written as is the dialogue, not to mention very poor acting (but then again, the boys are musicians and and not actors) The director of this film is one of Sweden's most criticized directors ever; he was usually being accused of making films for people with poor taste and low IQ (or no taste at all).
Having seen this film 40 years after its original release it's quite obvious why it became a financial disaster for the band. However, they are still around playing their old songs to an ageing audience - and they are really good at that!