Even with all the progress we have made in visual effects, sometimes it is still very hard to create certain VFX scenes. This is exactly what happened in the 10-year-in-the-making Irishman movie due to one single problem! The actors' faces were not covered with motion-capture dots, they were not wearing motion-capture suits or even acting with a green screen behind them, so how did they create the de-aging effects in the film? Let's figure it out in this video!