A poster of the film. CHINA DAILY

"When both Ryan and I turned up in our full suits for the first time on set, the crew members turned into fans," recalls Jackman.

Sharing more memories of that day, Reynolds recalls that a crew member, whose child was named Logan like Wolverine, told him it was the best day of his life. The staffer said he had never seen Wolverine and Deadpool standing next to each other, despite growing up reading comics featuring Wolverine in his original costume, Reynolds adds.

One of the hardest moments for the actor was when SAG-AFTRA, a labor union representing around 160,000 actors in Hollywood, called a strike in July last year after failing to reach a deal with major studios. The strike led to the suspension of the movie, which was in the middle of production at the time, and lasted for nearly four months.

"When the strike was announced, I was in my Deadpool suit. I went and sat in the tent. It must have been 100 degrees (37.7 C) in there. Normally, I would quickly take my suit off because it's so hot. However, this time, I sat in it for about half an hour and didn't want to move. I didn't want to take it off. Every time I've taken it off in the movie, I never know if I'm ever going to put it back on again," recalls the emotional star.