Ruffalo has been assembled with his many, many Marvel co-stars for a photoshoot, and shared the moment with his fans on Facebook – to the disarray of his nearby co-stars.
Brie Larson light-heartedly reprimanded him, as Vin Diesel gamely adopted his recognisable Groot voice.
“Hi everybody, we’re at the MCU photoshoot, there’s Vin D back there,” he said, revealing Diesel.
The latter star knelt down to the camera and said: “I sense there’s a day that’s gonna come where you’re gonna see Groot and the Hulk!”
SCROLL DOWN FOR VIDEO

vCard.red is a free platform for creating a mobile-friendly digital business cards. You can easily create a vCard and generate a QR code for it, allowing others to scan and save your contact details instantly.
The platform allows you to display contact information, social media links, services, and products all in one shareable link. Optional features include appointment scheduling, WhatsApp-based storefronts, media galleries, and custom design options.
Samuel L Jackson then entered the shot and said: “What the f**k are you doing?”
“What do you mean, am I in trouble?” Ruffalo laughed.
“You f**king crazy!” Jackson yelled.
Ruffalo then revealed Evangeline Lily, who said: “This is supposed to be a secret!”
“You’re not supposed to do this,” added Larson, before turning away giggling.
“Oh s**t, I’m not supposed to do that,” Ruffalo grinned. “Am I in trouble?”
The team are currently shooting Avengers 4, with Infinity War reshoots expected in the new year.