2001 is boring as an adult even more. And I watched it in double speed. That one was for people that are high. It had good moments, but overal just too stretched out. You could run it as an art installation somehwere in the background maybe.
So basically you would need a tag that entails that the game is for mature players in a sense that is not usually used in this context. Like the real meaning and not being the fancy word for saying stuff that minors are not allowed to watch.
Btw, I had a look at your gameplay video. Difficulty would not be easier if people were older. Your game is Rockstar Ate My Hamster with movies (wich was played by 12yos) and an interface that reminds more of an office application than of a game. The gaming part is not the problem, kids will figure that out. Sure it is more complex, but you need not know anything about movies or movie production. Gaming (at least one part) is about optimization. You get a budget, a time frame, means to spend money to make money. In short: management simulation game. You make it sound as if you would need real knowledge to play the game. The game should actually teach those mechanics in the context of the game. Teach as in, players will figure out optimal strategies.
(Oh, and I saw Blade Runner as a kid and it was not boring to me. Quite the contrary. Maybe a bit scary. ;-)