They aren't actually the same, just very close. Sort of "renow" vs. "peusho", thought that doesn't quite cover the difference exactly.

Another good one in French is cognac... the "gn" sound is very glottal. Longeuil (suburb of Montreal) demonstrates another sound that's very subtle, the "euil" ending. To straight english ears, it sounds like "oy", but in fact the l is in there in how you move your tongue when pronouncing it properly.