Though the movie isn't in theaters anymore (is it? Maybe at the dollar shows around the country), there's still plenty of Age of Ultron stuff coming out from various companies. One of them is WizKids. You've seen the HeroClix set, now you can add Dice Masters.
The new set adds another starter set to those for the game. You get another 44 dice, 38 cards, a couple dice bags, and a rulebook. Take to the table as either various heroes from the Marvel universe, or as those who only want to see the world burn, including Ultron, himself (itself?).
You can pick up Dice Masters: Age of Ultron at North American retailers now.