Demi Lovato apologizes to Alyson Stoner for letting fame get to her head between “Camp Rock” movies

"I look back at that time, and I have profound sadness," Lovato said, "'cause I'm like, 'How many people did I treat poorly?'"

Demi Lovato regrets behaving poorly on the set of Camp Rock 2: The Final Jam.

In the new documentary Child Star, the "Heart Attack" singer, who uses she/they pronouns, sat down with her Camp Rock costar Alyson Stoner, who uses they/them pronouns. Over the course of their conversation, the two actors discussed how their attitudes shifted between the first and second Camp Rock movies, which released on Disney Channel in 2008 and 2010.

"I felt like more of an equal when I did Camp Rock, because the first one we were all at the Grand [hotel]," Lovato said. "Okay, the memories are flooding! I do know we had a lot of cast dinners at the restaurant," Stoner added.

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After Lovato launched a successful music career and starred on the series Sonny with a Chance, her star rose above many of her colleagues'. "Then my career exploded, and all of a sudden I was staying at the Four Seasons," they said. "There was definitely a power dynamic and a shift in that, when the second movie came, it felt really validating because I had been leveled up, but I was trading connection for success."

Stoner recalled feeling distant from Lovato during The Final Jam. "I remember that it felt so hard to access you in that way," they said. "Like we had lost that thread of trust, we had lost that closeness. It didn't seem maybe like you wanted to be reached either at that point. So the last few years of working together felt really challenging."

Stoner and Lovato both became teary-eyed at this point in their conversation. "The treatment did feel drastically different," Stoner said, preparing to acknowledge the awkward subject of Lovato's difficult demeanor. "My heart is racing. I do remember a sense of walking on eggshells [around you], and so there was definitely a lot of fear of a blow-up."

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Lovato recognized that it was a particularly intense period in her career, but also took accountability for her actions. "I know that we both were going through our own stuff, but it still didn't give me an excuse to treat anyone poorly, and so I just want to genuinely, deeply apologize for any stress or any walking on eggshells, any hurt feelings," they said. "I'm genuinely so sorry for that. And I look back at that time, and I have profound sadness, 'cause I'm like, 'How many people did I treat poorly?'"

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Lovato also noted that they have difficulties recalling the period of The Final Jam, which came shortly before they checked into rehab in Nov. 2010. "Camp Rock, I remember a lot more than I do Camp Rock 2," Lovato said.

Stoner agreed that they struggle to recall certain periods of their adolescent stardom: "There were like entire projects that was like 'Oh, that film.'" Lovato then posited, "Disassociation. It's like a common thread between all of us," which Stoner affirmed, "All of us."

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Stoner, who also appeared in the Cheaper by the Dozen and Step Up movies, said that their intense professionalism as a child led to heightened dissociation. "I know I started dancing around 3 years old, and I just went straight to treating it like work," they explained. "I think I was dissociated kind of throughout the whole journey. On the outside, you look like everything's okay. And then years later, you can't remember a thing."

Child Star, which is co-directed by Lovato, is now streaming on Hulu.

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