I've been intrigued by the previews/stills I've seen of the upcoming Curious George movie simply because of my passing interest in animation. As far as I could tell, it was not being released by any of the main animation studios, and so I kept wondering why the style was so familiar. Here's why. Many of the various animators/storyboard artists have been collectively responsible for such work as Batman, the Animated Series, Justice League, The Tick (the original series), Lilo & Stitch, Mulan, Tarzan, Pocahontas and The Iron Giant; and George's key animator was also the key character animator for Captain Gantu/Cobra Bubbles (Lilo & Stitch), Patcha (The Emperor's New Groove), Mushu (Mulan), Phoebus (Hunchback of Notre Dame), John Smith (Pocahontas), and Hyenas (The Lion King). So while it's not animated by any of the "major studios" known for animation, yes, I have seem the style before -- it's the mutated combination of Disney and Warner Brothers.
Now, I don't know if the movie is any good, although I have a childhood affection for Curious George (not quite to the extent of nutmeg3), but I do love the style of the animation. It's nifty looking.