Are Joaquin Phoenix and Ben Chaplin converging?

Watching Perfume, it was suddenly very clear to me that Dustin Hoffman was becoming Bea Arthur. And now, watching The Water Horse, it appears that the same thing is happening to River Phoenix and Ben Chaplin. Then I remembered noticing that the darker half of Siegried and Roy had somehow turned into Eartha Kitt. (And his partner appears to be eying Judy Dench’s skin for size.)

Is it just me, or are aliens experimenting with our celebrities’ DNA?