While we'll have to wait awhile -- until Christmas 2018 -- for the film to umbrella fly into theaters, in December ET spoke to Dick Van Dyke, who opened up about his cameo in Mary Poppins Returns, after playing multiple roles in the original picture.

"I'll be going to London in the spring to do my role, and I get to do a little song-and-dance number," the 91-year-old actor explained. "I gotta be a part of it."