It shouldn't come as a surprise that one of the most emotional moments in the film is Dick Van Dyke's cameo. The actor portrays Mr. Dawes Jr., the son of bank director Mr. Dawes from the original film, who was also played by Van Dyke. Not only is his scene a cute nod to the original film, but it's also hard not to burst into tears when he starts singing and dancing to "Trip a Little Light Fantastic (Reprise)." He's still got it! Additionally, Meryl Streep, Colin Firth, and Angela Lansbury have small roles in the film.