While I guess it isn't a big secret that Alfred Hitchcock has always been a huge inspiration for Brian De Palma, one possible connection between both of them has only occurred to me recently. The introduction of De Palma's Snake Eyes is famous for being shot continuously without any visible cuts. Another movie that famously exhibits this property is Hitchcock's Rope (as also discussed in this question). Add to this that the story of Snake Eyes unfolds in real-time, which is more or less the case for Rope, too.
Now is there any information (or at least further indication from the respective movies) if the introduction of Snake Eyes is a direct reference to Rope or am I just making things up here?