Kate Beckinsale has left fans baffled after she uploaded a video of herself with her adorable cat.MORE: Kate Beckinsale mourns tragic death of her dad in emotional tributeIn the video, the Underworld star coaxed her pet cat over to her, whistling at the kitty and saying he'd approach her if he "was a good boy."The cat eventually approached the Hollywood star, and Kate planted a huge smooch on the top of his head.WATCH: Kate Beckinsale leaves fans baffled with indoor bobble hat"He's either a very