If Chris Evans wanted the world's attention, he got it. The Knives Out star became a Twitter trending topic Saturday after apparently posting a pic of his junk by mistake, Us Weekly reports. The 39-year-old put photos on his Instagram Story of him and his pals playing the game Heads Up, but the camera roll included a black-and-white of someone's business. Another pic showed an Evans meme with a warning that women should "guard" their own private parts. Of course, the pics didn't stay up long. Among the reactions: