The Daily Telegraph's Robbie Collin awarded the film four stars and wrote: "Mamma Mia!".
The Mamma Mia: Here We Go Again soundtrack is on course to debut inside the Top 10 on this week's Official UK Albums Chart.
Entertainment Weekly issued a B grade, saying of the former Downton Abbey star: "She has the unenviable task of slipping into a role invented onscreen by Meryl Streep, but she wears it so lightly, and with so much tart, fizzy sweetness, the camera and the story follow".
Mamma Mia, which was a hugely successful stage musical first, made more than $600m (£453m) worldwide.
"We were kind of protective of the first one because we were very proud of it, it was very good and it became kind of a cult movie ... and we thought what's the point of risking ... taking away from that legacy, so we were reluctant", Ulvaeus told Reuters.
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He can " stick his submarine where it hurts ", Unsworth said during the interview in Thailand. Well, rescuing 12 young boys, by definition that puts everybody else in the same context".
It will be Cher's first full album since 2013's Closer to the Truth, which spawned singles "Woman's World" and "I Hope You Find It". "It was amusing, it was moving so we said go ahead and here we are".
The sequel's cast additions include Lily James, who plays the younger Donna, and Cher, who portrays Donna's mother.
It's the album we didn't know we needed.until now.
Brosnan called the film " a great antidote to the times we lives in". I sat snobbishly on my high horse and said it was a load of cheesy nonsense with a clunky plot that didn't so much develop as lurch from one Abba song to another.