Other than technology, films being made today still do about what films did in years past. While the films of today explore cultural taboos, they always have, it's just that what films explored in the past is either something that we are fine with now, or is was done in a more subtle as to be sensitive to audiences. The fact that cameras are much more accessible now helps people who in the past would not have been able to become filmmakers. When filmmaking was not easily attainable and was more of the stereotype of "art is leisure for the wealthy", so when you could even slightly do anything in movie making you could become successful, you didn't really have to have any natural talent or put much effort in to get into hollywood in less important roles. Nowadays you really need to be great at filmmaking and you can be really good at making movies even if you're not an extremely rich person. The technology in filmmaking we have now has opened up movie making to a lot more people, so we can have a lot more people who know what they're doing.