A feud is born. On Oct. 5, two films will premiere: Lady Gaga and Bradley Cooper’s “A Star Is Born” and Tom Hardy’s “Venom.” Despite the fact that “A Star Is Born” has already drummed up significant hype, garnering a 95% rating on Rotten Tomatoes and awards buzz, Gaga’s fan base is apparently taking it upon themselves to make sure the movie gets as much opening day attention as “Venom.” Once the social media embargo for “Venom” broke following the superhero movie’s red carpet premiere on Monday night, some Twitter users noticed negative reviews floating around Twitter — but it...