10 Movie Secrets That Were Hiding In Plain Sight
4. Cross' Murderous Motivations - Ant Man

Though audiences could tell a mile off that Cross was going to be the villain of Ant Man by the time the climax came around - after all, when has a smartly-dressed business man who isn't the hero ever turned out to be good in these movies? - the extent of his villainy is actually revealed in an mid-movie scene, you just didn't know it.
Cross shows up in Hank Pym's house to invite him to the unveiling of the Yellow Jacket, however it's later revealed he was actually there to kill him. Though he outright says as much later in the movie, in this scene the fact that he's wearing gloves (and his outfit in general) gives away his true intentions.
You could say he just enjoys wearing leather gloves, but it's the only time in the movie he's shown with them on which, combined with the rest of his get up, indicates that he was going to assassinate Pym and slip away without leaving any evidence.
I mean, he tried to be inconspicuous, but the dude couldn't have worn an outfit that screamed "I am a serial killer" more if he tried.