Reviewed by GREG KINGDirector: Etan CohenStars: Will Ferrell, John C Reilly, Rebecca Hall, Kelly Macdonald, Pam Ferris, Ralph Fiennes, Rob Brydon, Steve Coogan, Hugh Laurie, Noah Jupe, Lauren Lapkus, Michael Culkin.My list of the worst films of 2018 has just had a late addition with Holmes & Watson, an execrable and terribly unfunny piece of nonsense that will have Sir Arthur Conan Doyle spinning in …