Skyrim updated to 1.5 but no 'cinematic killcam'
They are in there, the new ones have made me laugh (especially the two-hander head banging)... But they are random. Getting them to show up is not a guaranteed thing. All I can suggest is keep playing.. I often work my combats to be 1 on 1 or 1 on 2 and such and I get the kill cam slo-mo quite often.