Actors go full-frontal on screen fairly frequently—have you seen Gone Girl? The needs for prosthetic penises can vary: Sometimes, actors understandably don't want millions of viewers to see what they look like fully naked. Sometimes, their characters are supposed to be packing a lot of heat. On that note, here are 11 famous dudes whose bits and pieces were the handiwork of Hollywood prop departments. Chris Hemsworth went full-frontal in this comedy, but his assets were not his own. It was ridiculous, the scale of it!