A movie featuring a dismembered hand being stuffed into a character’s mouth might signal a tone of ridiculous violence early on, rather than start with relatively sitcom-y domestic troubles. Coffee & Kareem is an exception. In Netflix’s new buddy comedy, the team-up of a white cop and an African American boy seesaws between that of kid-friendly comedies such as My Spy or Kindergarten Cop with more adult movies like Pineapple Express or This Is the End. For the most part, however, director Michael Dowse (Goon) and screenwriter Shane Mack manage it, throwing so much at the wall that some of it has to stick.