Doctor Rhythm is a 1938 American musical comedy film directed by Frank Tuttle and starring Bing Crosby, Mary Carlisle, Beatrice Lillie, and Andy Devine.

"In the Paramount’s Doctor Rhythm, Bing Crosby, Bea Lillie & Co. are wooing the comic muse as though they had a $5 bet on its surrender.

Nothing quite so grim as their pursuing of the elfin guffaw has been seen in these parts since Martha Raye fell down the incinerator chute....An advantage — we might say the only advantage — is the complete informality of the show, an attitude for which Miss Lillie is largely and blessedly responsible....This puts her one up on Mr. Crosby, whose crooning is almost too liquid this time.

"…There is good marquee display in the title and top names, and customers will spread favorable comment after leaving theatres.

This film should do nice business...‘On the Sentimental Side,’ one of five songs by John Burke and James V. Monaco, looms the likeliest along with ‘My Heart Is Taking Lessons.’ Frank Tuttle, who directed Waikiki Wedding with Crosby starred, seems to have the right combination on the crooner’s films...Dr.