Flight to Hong Kong - Rory Calhoun (1956) - former Junk Bay, Tseung Kwan O

The attempted cargo heist scene was filmed in the, then unreclaimed, northern section of Junk Bay -essentially what is now the Po Lam area of Tseung Kwan O. Of course it's completely unrecognisable now and even the mountains you see in the screencaps below are now very difficult to catch a glimpse of from ground level because of all the high rises blocking the view.

The first image below shows the view looking almost directly northwest between Razor Hill and Tai Sheung Tok. The ridgeline in the distance is Kowloon Peak. This image is actually a stitch of several screen caps from a camera pan. It's hard to believe that all of this area covered by water is now solid land and has high rises built on it. 

The next image shows Razor Hill.The flattish area on the left side of the hill is Pik Uk Au where Rise Park Villas now stands. Old readers may remember that flat area was used for filming A Queen's Ransom, so you can see the reverse view (back down into the bay) here.

The next image shows the view towards the mouth of the bay with the top of Tung Lung Chau just visible in the distance and Junk Island on the right of frame.