Samuel L. Jackson and Michael Keaton have shared the screen several times, in comedies like “The Other Guys” or dramas such as Quentin Tarantino’s “Jackie Brown.” Jackson is reunited with Tarantino for “The Hateful Eight,” in which he plays a bounty hunter in post-Civil War Wyoming. Keaton leads an impressive ensemble in “Spotlight,” Tom McCarthy’s drama about Boston Globe reporters who broke the story of the Catholic Church’s cover-up of child molestation by priests.