A.H. Weiler of "The New York Times" called the film "big, brassy, bold and freewheeling" but added, "The tones are ringing, but often hollow. Molly is a colorful character all right, and the screen, which is as wide as can be, is filled with vivid colors that help project the fact that this is merely a satisfying musical comedy and not an inspired subject." He continued, "This is not to say that Meredith Willson's score is not tuneful and lilting but to this listener it is good, sweet corn that is more palatable than memorable. Mr. Gennaro, on the other hand, has devised dances that more than complement Mr. Willson's music. They may seem to be improvised but they have the true marks of professionalism in their carefully plotted verve, bounce and exuberance." He concluded, ""The Unsinkable Molly Brown", in the person of Miss Reynolds, and the other principals, often mistakes vigor for art. But Metro's lavish and attractive production numbers make up for this basic superficiality. For all of its shallowness, "Molly" is a cheerful and entertaining addition to the local screen scene."