Here is the movie that got Emma Thompson back into voice acting — and, surprise surprise, it's another Disney production, this time via Pixar. Admittedly, "Brave" is often seen as one of Pixar's lesser films — not bad by any stretch, but far from the masterful efforts of most of the studio's output up to that point. But it's still a wonderful film, particularly in its exploration of gender roles and the often unfair and selfish expectations that are put not only on girls, but children in general.
Thompson's Queen Elinor only gets to spend part of the movie in human form. A series of events early on turns her into a bear, which is unable to speak. This means that Thompson actually doesn't have all that many lines in the film despite her character being a constant presence throughout. But she's a great choice for the part even in its limited capacity, and really gets at the heart of a character who is torn between being beholden to tradition and wanting her daughter to be happy.