Aaron Taylor-Johnson has described Gareth Edwards' Godzilla remake as "incredible".
The Monsters filmmaker is directing the upcoming "origin story", which has been shooting in Vancouver. A brief teaser was unveiled at Comic-Con in San Diego in July.
The Kick-Ass star, who plays Lieutenant Ford in Godzilla, said: "I've never worked on anything like that in my life, it was amazing. We shot some incredible stuff. I'm excited for how they will put that together, because I'm a huge fan."
The star-studded ensemble cast also includes Elizabeth Olsen, Juliette Binoche, Breaking Bad's Bryan Cranston and Ken Watanabe.
Aaron - who reprises his role as Dave Lizewski and his wannabe superhero alter-ego Kick-Ass in the sequel - admitted he had initial doubts about signing on, until he heard that Gareth was in charge.
"When I was asked about Godzilla, I thought, 'Why would I do that?' And then they mentioned Gareth Edwards was directing. I was in awe of what he did so I went to meet him," he recalled.
"It was meant to be a 30-minute meeting, which turned into six hours. I was intrigued by him and his vision. He's really modest and humble as a person, so he's really easy to work with and was incredibly chilled out. He never blows. But more importantly, he's such a genius filmmaker. He really did it for me."
Kick-Ass 2 is in cinemas now, while Godzilla will be released in May 2014.