It's definitely Kubrick's most NSFW picture in my opinion even more severe in its images than A Clockwork Orange. Nicole Kidman is great in a supporting role whilst Tom Cruise is good, but comletely overshadowed by Kubrick's artistry at play and Cruise seems like he's straggling slightly in performance at times. Eyes Wide Shut explores sex, infidelity, marriage, humilation, deviance and other topics personally I think the main theme of the film is want - the want to wear a mask and the want to take off one's mask.
Kubrick's last and massively underrated motion picture reaps tiny seeds of its climax from the get go.