DreamWorks Animation’s latest movie, Mr. Peabody and Sherman, opens today on 3,470 screens, Box Office Mojo is reporting. The film is scoring pretty well with critics, earning a 77% “freshness” score over at Rotten Tomatoes, with the consensus being that the movie “offers a surprisingly entertaining burst of colorful all-ages fun, despite its dated source material and rather convoluted plot.” Although its expected to open under 300: Rise of An Empire, it is still projected to debut to $30 million-$40 million this weekend.