Because next to something as hyperrealistic as Keanu everything looks fake. That's why they have use tons of cgi in all his movies, reality just isn't real enough.
**Keanu Reeves falls down a flight of stairs**
FAN: "Can I get a selfie real quick?"
Keanu standing on his one good knee:
"Sure just angle the phone down a bit *artery spurts*
"quick before my smile goes..."
FAN: "Can I get a selfie real quick?"
Keanu standing on his one good knee:
"Sure just angle the phone down a bit *artery spurts*
"quick before my smile goes..."