Mr. Cinderella is a 1936 American comedy film directed by Edward Sedgwick and written by Richard Flournoy and Arthur V. Jones.

The film stars Jack Haley, Betty Furness, Arthur Treacher, Raymond Walburn, Robert McWade and Rosina Lawrence.

He asks his daughter Pat to extend a dinner invitation to eccentric millionaire Aloysius P. Merriweather, a man whom they have never met.

They spend the night together on a beach, and Aunt Penelope impulsively announces Pat's engagement to marry Joe, believing that he is Aloysius.

Mazie reads about the engagement and appears, causing trouble, as does her brother Spike, who wants to kill her cheating boyfriend.