Teacher's Pet (2004)

Pamela Adlon, Mae Whitman, Nathan Lane, Wallace Shawn

Leonard is a 4th grader; his mother, Mrs. Mary Lou Helperman, is his teacher, and has been nominated for a teaching award. They plan a trip to Florida for the finals, but need to leave their dog, Spot, behind. Unknown to Mrs. Helperman, Spot has been masquerading as a boy, Scott, who is her star pup