Doing another bit of backtracking and ruining my love of Will Ferrell and John C. Reilly as a comedic duo. “Holmes and Watson” WAS going to be my family’s Christmas movie, and it’s a miracle it wasn’t because this is a low for the duo. Somehow Rebecca Hall, Rob Brydon, Steve Coogan, Ralph Fiennes, Lauren Lapkus, and Kelly Macdonald all also star.