Aunjanue Ellis, Mikayla Bartholomew, Will Smith, Saniyya Sidney, Demi Singleton and Daniele Lawson in “King Richard.” (Chiabella James/Warner Bros.) The long Thanksgiving weekend is about tryptophan overload, Cyber Monday (who needs Black Friday?) and blockbusters. Regarding the latter, there are a number of worthwhile films screening, but parents shouldn’t […]