A tenacious little donkey and his newfound friends follow a bright light in the sky and become part of the first Christmas in this animated fable. Voices of Steven Yeun, Gina Rodriguez, Zachary Levi, Keegan-Michael Key, Tracy Morgan, Tyler Perry, Oprah Winfrey. Written by Carlos Kotkin; story by Simon Moore and Kotkin. Directed by Timothy Reckart. (1:26) NR.