But with his heavily pregnant wife Elsa Pataky by his side, the proud dad-to-be was more focused on his upcoming role as a father.
The Australian actor lovingly patted the Spanish beauty's tummy on the red carpet.
Their new arrival will be a 'niece' or 'nephew' for Miley Cyrus – who dates Chris' actor brother, Liam Hemsworth.
Chris shot to fame after portraying muscle-bound Marvel character Thor in the 2011 blockbuster.
Now he is back in The Avengers – an ensemble piece uniting a group of superheroes including Iron Man, played by Robert Downey Jr.
Scarlett Johansson also reprises her role as Russian spy Natasha Romanoff, whose alter-ego is the feisty heroine Black Widow.
Speaking at the premiere, the curvaceous 27-year-old admitted sticking to a gruelling fitness regime so she could fit into her unforgiving costume.
"How come I get the rabbit food question?" she joked with reporters before adding: "Yes, surely. You're training and doing all that stunt work so you eat a lot of green things."