The Guardians of the Galaxy movies have always had something of a juvenile sense of humor about them, but when James Gunn suggested a bodily function-based joke line to Sylvester Stallone, the Rocky star said he wasn’t going to say it – before being tricked into saying the line anyway.

Sylvester Stallone became a surprise guest star in Guardians of the Galaxy Vol. 2, playing a Ravager called Stakar Ogord. While his character received a mention but was not seen in the Guardians of the Galaxy Holiday Special, he will be back on-screen in Guardians of the Galaxy Vol. 3, but the context of his appearance is yet to be revealed. However, it seems that one line that James Gunn suggested to him was a step too far for the action hero.

Speaking to Cinemablend, director Gunn and Guardians leader Chris Pratt recalled the moment that Gunn attempted to make a dream come true by getting Stallone to utter the line, “I gotta go take a sh*t.” The moment played out something like this:

Pratt: “Oh, remember, yeah, he was like, ‘I’m not going to say that…’”

Gunn: “I said, ‘Okay, I gotta go take a sh*t.’”

Pratt: “Yep. ‘I gotta go take a sh*t.’ And he goes, ‘I’m not going to say that, no. What? I gotta go take a sh*t?’ And you were like, ‘You just said it!’”

Gunn: “(Laughing) I just wanted Sly to say, ‘I’m gonna go take a sh*t!’”

Whether the line makes it into the final cut in any way is something that will be revealed this weekend when Guardians of the Galaxy Vol. 3 is released worldwide.

Related: Guardians of the Galaxy Vol.3: Chukwudi Iwuji Says His Agent Found It Hard Speaking To Him Due To his Villain's Cruelty To Animals

Guardians of the Galaxy Vol. 3 is May Not Hit the Heights of Its Predecessor.

Guardians of the Galaxy Vol. 3
Walt Disney Studios

Although it is strange to suggest that any movie taking around $110 million in its opening weekend is something of a disappointment, the MCU has set itself up to expect huge audience numbers in the first weekend of any movie release. While the current projections are suggesting Guardians of the Galaxy Vol. 3 could well hit $120 million domestically, but recently projections have not necessarily been on target so there is scope for the film to do better or worse when the weekend numbers come in.

In comparison to James Gunn’s previous Marvel offerings, the movie is likely to beat 2014’s Guardians of the Galaxy, which took $94 million, but will fall short of Guardians of the Galaxy Vol. 2’s $146 million. In relation to other recent MCU movies, the $120 million mark will put it just above Ant-Man and the Wasp: Quantumania’s $106 million, but behind all of 2022’s releases on the domestic front. If Guardians of the Galaxy Vol. 3 can manage to outdo Quantumania’s unimpressive $465 million worldwide gross, then it could fuel the belief that February’s release was just a minor blip on the Marvel landscape, but if it falls short then it could extend the uncertainty about the future profitability of the franchise.