Deadpool star Ryan Reynolds has tweeted a photo of a letter from Iron Man refusing to let his character join the Avengers, as the latest superhero film breaks box office records.
Avengers: Infinity War made $250m (£181.5m) in ticket sales during its opening weekend in the US, narrowly beating Star Wars: The Force Awakens for the highest opening weekend ever.
It is yet to open in China, one of the world's largest movie markets.
Reynolds, whose character also comes under the Marvel banner, posted a message on Twitter saying: "From a guy who never knows when to quit, I'm glad you guys never did.
He posted a picture of a letter from Tony Stark/Iron Man, the character played by Robert Downey Jr.
The letter had the subject "Re: Joining the Avengers" and said: "No. Absolutely not. Go bother Prof X. No."
Reynolds is no stranger to box office records after Deadpool became the highest grossing R-rated film when it took $783m in 2016.
The follow-up, Deadpool 2, is due to be released in the UK on 16 May.
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Avengers: Infinity War sees the superhero clique come together to combat the deadly threat posed by supervillain Thanos.
The cast includes Chris Hemsworth as Thor, Scarlett Johansson as Natasha Romanoff/Black Widow, Benedict Cumberbatch as Stephen Strange and Chris Evans as Steve Rogers/Captain America.