This is one of the Golden Era movies that I have always wanted to see but never got around to actually doing it. One reason is of course Shammi Kapoor. I believe, though I don't actually know if it's true, that his movies are rarely sad. The time slot of 11-12:30 is rather inconvenient. And frankly, the idea that you will have to wait for 24 hours to see the other half of the movie is ludicrous in this day and age when people watch even TV channels in real-time on their mobiles. But I guess it has its charm - it kinda takes you back to the good old DD days when you would wait for the Sunday evening Hindi movie. :-)
Okay, so about the movie. If the title fails to clue you in, the message shown before the movie starts - 'You can fool some people all the time and all the people some of the times. But you cannot fool all the people all the time' - is enough to figure out the entire plot. So we have the hero Ashok who is very adept at conning people. In fact, almost the first half of the movie is entirely dedicated to bring out this aspect of his personality. But since he is a hero, all is done just so that he can secure a better station in life. Somewhere along the line, he meets the lady (Saira Banu) who is, as was the norm for many movies of that era, from a wealthy family. The duo are about to get married when the villain (Pran) brings Ashok's mom (Lalita Pawar) into the picture. The rest of the movie, though utterly predictable to any Indian, is nonetheless a good entertainment to watch - even the last fight, though it seems almost comical by today's standards.
As far as the acting goes, Shammi has been his usual likeable mischievous self. Saira Banu looks adorable (Boy! She was so slim then!) though her transformation into a docile Indian would-be daughter-in-law did baffle me. Pran plays the villain to such a perfection that you want to reach in and throttle him. And Lalita Pawar, for once, is a loving ma-in-law. :-) Three of the songs - हुस्न चला कुछ ऐसी चाल, चली चली कैसी हवा ये चली and ऐ दिल have always been my favorites. I never really liked गोविंदा आला रे आला. But बेदर्दी दगाबाज was a surprise discovery :-)
All in all, it was worth staying way past midnight on two consecutive weekdays :-)