Scott Wilkinson saw Interstellar and says that Christopher Nolan used a wide variety of aspect ratios to maximize the impact of moments in the film. From wide screen for intimate moments to tall for outer space moments. It's available in six different formats from IMAX film to 4K digital. Scott says that Nolan is definitely a filmophile. He doesn't like immersive audio, so he didn't mix in Dolby Atmos. And he doesn't like 3D. It's a pure movie experience.
There's also complaints about it being too loud and hard to understand dialogue. Scott says that some people think it was Nolan's 2001, but he doesn't think that it rises to that level. Especially because of the audio issues.