Near the end of the film Dennis Morgan takes a seat to see Joan Leslie's play. He is seated next to a young woman. The next time the camera cuts to him he is in the same seat, but sitting next to an older woman wearing completely different clothing.
Near the end, when Paul walks in to see Helen and Katie (after Katie told Helen she and Paul were to be married), the shot goes from the sisters facing each other to standing shoulder to shoulder back to facing each other.
Just moments after the opening night performance of a Broadway musical, several characters look at a print review of the show that appeared in weekly Variety. At that time, the publication did not run reviews of previews so there is now way this review could have appeared in print before curtain went down for first public performance.