***1/2. 'Climbing High' is often on a par with the best Howard Hawks or Leo McCarey's American comedies of the 30's. Two scenes will stay in my memory: the first with a huge ventilator causing panic in a studio and the scene in the Swiss Alps with a mad man playing with a rope at the end of which the heroin is hanging. And don't forget that Alastair Sim plays in the film! Highly recommended.