this was the funniest movie i've seen in years
>what movie is this based on?
The other girl in the original is an executive producer and cameos in this.
The producers kind of had to put her and Sondra Locke into the movie because they wrote the original treatment for Death Game; otherwise the Screenwriters Guild shitstorm would have shuttered production overnight. This is why the original screenwriter for Robocop is credited in the remake, and he didn't even get involved in that (the Guild read the script and said "you're crediting that guy and paying him, deal with it")
>Why is Keanu in this?
Otherwise the leads would have been 100% Chilean (like the setting and production crew) and the ridiculous premise this is set in California would have fallen through along with the viewership.
Why Keanu, specifically? Ethan Hawke was busy that weekend.