How many stars did Kung Fu Panda get in Peter Howell 's review ?
The film became DreamWorks ' biggest opening for a non-sequel film , the highest grossing animated film of the year worldwide , and also had the fourth - largest opening weekend for a DreamWorks animated film at the American and Canadian box office , behind " Shrek 2 " , " Shrek the Third " , and " Shrek Forever After " .