American studios routinely take 50-55 of domestic grosses, but that depends on how frontloaded it is. Foreign varies a lot, from 25 to 50% depending on how distribution is done.
A massive success, you said. Let's say 20 million dollars is right. It's still only a solid success for an industry grossing 12 billion a year. Studios can only invest in so many movies so it's not just about whether there is some profit. A studio can't make 300 movies even if they would all be profitable. The word of mouth and streaming rentals had a huge effect with Wick. That sealed the deal -- it didn't happen when you said it did.
Why are you arguing this, faggot? It was a solid, moderate success, much like Terminator you retarded fanboy. Making out like it was something more is dumb.
Edit: for facts, release day was in October 2014. DVD/streaming was Feb 3 2015. Greenlight was may 2015. Know what you're talking about.
Lionsgate Reloads John Wick 2