India landed on the Moon for less than it cost to make Interstellar

Yeah – it's a lot cheaper when numerous other space agencies do it before you and release all the available information about how to do it so you just have to use all their research and experience at no cost.

Well, yeah, the moon is only at the edge of intralunar space. That's orders of magnitude closer than interstellar.

Seriously though, that's not a fair comparison. The Bollywood version of Interstellar would be way cheaper, and probably just as awesome as India's moon landing.