Toni Collette is not an actress known for her participation in feel-good cinema. While she achieved fame with her sunniness in 1994’s “Muriel’s Wedding,” Collette has generally gravitated toward complex characters filled with misery, dread, and general darkness (her most recent offerings include “Stowaway” and “I’m Thinking of Ending Things”). And she’s usually outstanding in these parts. For “Dream Horse,” Collette portrays Jan Vokes, a middle-aged woman with a desire to feel something again, turning her attention to the care of a special race horse funded by the residents of a small Welsh village. It’s not an especially fresh idea, but that’s what Collette is here for, delivering an unusual performance of emotional processing in a feature that’s looking to lift spirits during impossibly dark times. “Dream Horse” doesn’t go Disney, finding ways to do different things with formulaic material, highlighting relationships as it delivers the essentials in underdog cinema. Read the rest at Blu-ray.com