70mm is impressive of course but it doesn't make a film better. Actually I would suggest to watch Interstellar in a classic DCP theatre. The amazement coming from a 70mm screening can easily hide the flaws of the film. And this one has many, even if it's still a very entertaining SF film.

I don't understand why sex should be censored in the first place... We're not in Middle Age anymore...

Big studios system is an american thing. Films are made all over the world without it, and there are no problem so yes you don't need the studio system. Actually this studio system is old and doesn't work anymore (mostly bad super heroes films, remakes, stupid comedies, etc).

Good job! Quite impressive. Your trailer's a bit long though (like many trailers).