Because runtime is a secret handshake. When another fan asks, “Is it long?” and you say, “Exactly 141 minutes,” you’re in the club. You’re saying, “I respect your time, but also, buckle up.”
Also, the exact number is a great party fact. Next time someone complains about movie length, hit them with: “Avengers 2 is shorter than Finding Nemo.” That’s true! Finding Nemo is 100 minutes. So Ultron gives you an extra 41 minutes of robot angst. Bargain.
