Passable British comedy from veteran director MacLean Rogers starring a very good Ronald Shiner as a slightly shady steward on a cruise ship who eventually foils some diamond thieves. Some bits go on for too long and become tiresome, but overall this is a fun time. Hard to take the bit where Shiner and his co-hort put blackface on to pass as Arabs. Aside from that, Michael Pertwee's script is competent.