“Kiss Tomorrow Goodbye,” despite the vernacular brilliance of Harry Brown’s script, wanders off into a rhythm-breaking subplot involving a thrill-seeking heiress (Helena Carter) infatuated with Cagney’s character. Another pass through the typewriter might have tightened these sequences (or eliminated them altogether), but Douglas’s schedule left no time for such indulgences.
...If this was supposed to be some sort of brilliant long con by our anti-hero, it doesn't play that way at all, and a shot that makes a point of having the spurned girlfriend learn about the heiress is rendered irrelevant when she gets another piece of news that makes her even more murderously angry with him. Nor is Gordon Douglas the kind of director who can paper over such nonsense with pure style. Lots of energy, but that's all the film really has to recommend it.