Tess Holliday
Model Tess Holliday at the "Dinner with a Cause 18th Gala" held at the JW Marriott Los Angeles at L.A. LIVE Oct. 15, 2015 in Los Angeles. Getty Images

Tess Holliday, who first brought up an advertisement for "Red Shoes & the 7 Dwarfs" explained Thursday why she criticised Chloë Grace Moretz for the movie's body shaming controversy. While talking to Entertainment Tonight (ET), Holliday said her first reaction to the poster "was horror."

"I had to look at it to see if it was real, because I couldn't wrap my head around if that was a real movie poster in 2017," Holliday told ET.

"The fact that they put on the poster, or it was implied that Snow White wasn't beautiful because she was plus size, part of why that bothered me was the obvious," she continues. "This movie, you're catering it to young girls -- young children, even -- you know, big kids like me who love Disney or just that genre. You're telling them that it's not OK to look the way they do or be plus size at all, and more than likely, these children have parents or someone in their lives that look like me. They might be plus size themselves, and so it's just sending a message that they're not OK the way that they are or someone in there life isn't, which is obviously really damaging, which is why I was so confused on how it came about to begin with."

Read: Chloë Grace Moretz Responds To Tess Holliday, ‘Red Shoes’ Movie Issues Apology

The marketing campaign in question shows two women — one tall and thin, the other shorter and heavier — with the words, "What if Snow White was no longer beautiful and the 7 dwarfs not so short?"

After the poster surfaced, Holliday criticised Moretz in a tweet to her nearly 63,000 followers: “How did this get approved by an entire marketing team? Why is it okay to tell young kids being fat = ugly?”

Following the tweet, Moretz responded Wednesday saying she too was "angry and appalled" by the film's marketing.

“I have now fully reviewed the [marketing] for ‘Red Shoes,’ I am just as appalled and angry as everyone else, this wasn't approved by me or my team,” Moretz wrote to her 3.22 million followers Wednesday. “Pls [sic] know I have let the producers of the film know. I lent my voice to a beautiful script that I hope you will all see in its entirety.”

In her interview with ET, Holliday said she was pleased the 20-year-old Moretz addressed the concerns.

"The only reason I tagged Chloe in the tweet was because I was just a little shocked that someone who's been so vocal about feminist issues and things that this movie says is encompassing, I kind of was like, I feel like she doesn't know this is happening," Holliday explains. "I wasn't attacking her at all, it was more like I was saying, 'Hey, you're in this movie and why was this OK to say?'"

"I think it's wonderful that Chloe made the producers aware," she adds. "I'm just really glad that they're handling it and they realize that it wasn't OK. I just don't know why it took some fat girl on Twitter."