Milton Berle was enjoying the first flush of his television success when his musical-comedy movie vehicle Always Leave Them Laughing hit the screens. Though his character name is Kip Cooper, Uncle Miltie more or less plays himself: an ambitious comedian who rises to fame by stealing other performers' material. Surprisingly, Berle seems to delight in painting himself in as unsympathetic a light as possible, though the audience can be assured that he will find redemption before fadeout time. In contrast, Bert Lahr turns in a warm-hearted performance as an ageing burlesque comic who teaches Berle the ropes--whereupon our "hero" repays the favor by wooing Lahr's avaricious young bride Virginia Mayo. Ultimately, it is nice girl Ruth Roman who wins Berle's heart, though she certainly has her work cut out for her. Featured in the cast are such veteran troupers as Grace Hayes(the mother of Peter Lynd Hayes), Julius Tannen and Wally Vernon. But it's Berle's show all the way, and he makes a feast of it.