The most notable difference is in the final act. In the theatrical cut, the villain, Yuri Komarov, is killed off somewhat abruptly. In the Extended Cut, there is an entire additional scene where John and Jack McClane confront Komarov in a final standoff. This version is widely considered "grittier" and provides a more satisfying conclusion to the villain's arc. Captain America Civil War Tamilyogi Hot | Remains A Fan