When it comes to Omni-Man, he may be a real monster for much of the time, but there is also a side to him that is buried deep beneath his alien nature. Brolin is great at balancing these complexities.

But standing up against Omni-Man is still not his cup of tea. A man with the power to smash Thanos' skull with his bare hands, the Viltrumite warrior would break Captain America in pieces in a battle.

Watch the outlandish “Thanus” internet-theory-turned-meme come to life in this short film. Ant-Man dives into Thanos’ butt and expands to kill him. Avengers: Endgame comes out on April 26.

While both Thanos and Iron Man balance egotism with idealism in the beginning, and neither fully shed their arrogance or self-absorption, Iron Man's redeeming quality was his willingness to learn ...