It also says Potter stars Emma Watson, Rupert Grint and Daniel Radcliffe really shine in their roles.
The reviewer adds: "I was left with a ridiculous smile (on my face) at the end."
Finally the Atlanta Journal-Constitution website says you can expect this Potter film to be different from the rest: "Harry Potter is back - and a lot has changed."
More sinister and magical
The review goes on to say the Prisoner of Azkaban is more sinister and more magical than the first two films.
It also says that a lot more scenes are shot outdoors in forests and on grassy hills.
So international websites seem to be praising the latest Potter instalment but if you want to find out what Newsround's Lizo thought of the film, come back and all will be revealed on Thursday.