Miller, who played blunt bartender Weasel in the franchise's first two films and has been embroiled in multiple controversies over the years, says he thinks his former costar hates him and recalled a time when Reynolds allegedly requested another take to belittle Miller in front of the cast and crew.
"As the character, he was, like, horrifically mean to me. But to me. As if I'm Weasel," Miller explained on The Adam Carolla Show. "He was like, 'You know what's great about you, Weasel? You're not the star, but you do just enough exposition that it's funny, and then we can leave and get back to the real movie.'"
Miller said the jab took him by surprise. "I just kind of listened and thought it was weird, and then I got off stage because they were like, 'Cut…?,'" he said, adding that the crew seemed uncomfortable after the scene, too.
Miller also suggested the interaction went deeper than just an onscreen dynamic. "That's exactly why he said that," he deadpanned. "Because I'm not funnier than he is at all, right? And I haven't been in more movies than him."
Throughout the Carolla Show interview, Miller maintained that he genuinely enjoys Reynolds' performance as the Merc with a Mouth — even if he sees him as an "insecure dude" in real life. "He's such a good comedian that, when you cover his face, he's so quick, he's so funny," he said. "I love him as a comedian, but I think after he got super, super famous from the first Deadpool, then things kinda changed. I think he was like, 'See? You guys see?'"
Despite his comments, Miller admitted that his stance on working with Reynolds could change. "I've said that about Michael Bay, and now we're friends, and I would work with him again," he said, before adding that Bay similarly has a "very specific opinion" of Reynolds after they worked together on the 2019 film 6 Underground.
But, he added, "I don't wish them any ill will. I think [Reynolds] should make a Deadpool 3 and continue to make movies. I just think he doesn't like me, and I thought it was weird how he expressed that."