Warning ⚠ Spoilers ahead, Go slow : With endgame releasing worldwide it sent shock waves for all Marvel fans as we bid adieu to one of our favourite superheroes, Iron Man. But did you notice one similarity between his first and last appearance as the billionaire Tony Stark? It was an arc reactor surrounded by the words " Proof that Tony Stark has a heart " Wonder what it all means? Let's find out! 1. Denial to make weapons for terrorist: In the first iron man movie that came out in 2008, Tony Stark is captured by terrorists. In captivity, he is asked to make weapons in exchange for his life. Tony Stark decides otherwise and instead makes a suit in a cave to escape the goons! Genius isn't it? 2. Trying to save Yinsen: Ho Yinsen played by Shaun Toub helped Tony Stark survive the attack by the terrorists. He also helped in constructing the first iron suit. While escaping, Tony Stark refused to leave Yinsen alone in the cave until Yin...