Actress Mara Wilson has a memoir. She’s not Matilda anymore.

When Mara Wilson was a little girl, Hollywood couldn’t get enough of her.

She was one of those child actors who seemed preternaturally mature. Her vocabulary was surprisingly expansive. She could carry on full-blown conversations with adults. And she appeared to be in full control of her emotions, bringing out the puppy dog eyes at just the right moment.

Interviewing Wilson on the “Today” show in 1994, Katie Couric declared: “Every time I see you in a movie, I just want to put you in my pocket and take you home with me.”

Wilson was just 7 then, but she’d already had memorable roles in a remake of “Miracle on 34th Street” and opposite Robin Williams in “Mrs. Doubtfire.” A couple years later she’d score her biggest part yet: Playing Matilda in a film adaptation of Roald Dahl’s classic about the precocious book lover.

Then the offers stopped coming. As she hit her teenage years — a dreaded period of change for any child star — it seemed studio executives didn’t find her all that cute anymore. Wilson started looking at her peers — Scarlett Johansson, Keira Knightley — and she knew.

“I knew that wasn’t me,” said Wilson, now 29. “I would look at Keira — who is two years older than me — in magazines and think, ‘There’s no way I’m going to be as hot as her in two years. Things will have barely changed.’ I felt — and sometimes I still feel this way — I felt upset when I would meet people, because they seemed disappointed that I wasn’t cute.”

It’s a struggle she details in her new memoir, “Where Am I Now?: True Stories of Girlhood and Accidental Fame,” which was published Tuesday. Wilson has been writing for years: She studied playwriting at New York University; her website is named marawilsonwritesstuff.com; and her witty commentary on Twitter has earned her 300,000 followers. But when lit agents began approaching her with the idea of writing a book about her days in the movie business, she sparked at the idea of being able to explain herself in more than 140 characters.

“When you see that somebody’s last credit is ‘Thomas and the Magic Railroad’ when they’re an awkward 12-year-old, you’re, like, ‘Oh, how sad,’” she said. “You don’t know what happens between those IMDB entries. I knew there were people who felt sorry for me and people who were making up stories about me. I think I wanted to reclaim that narrative.”

Wilson was sitting at the Tea Rose Garden in Old Town Pasadena, a quaint cafe she went to with her “Matilda” castmates when she was a girl. Though she now calls New York City home, Wilson is a Burbank native, and most of her family still lives here. But as soon as she got the chance to move out of L.A., she jumped. At 18, she felt like everyone here was too focused on looks. Plus, she sunburned easily. And all the driving made her carsick.

But even 3,000 miles away, she found it difficult to escape her reputation. At NYU, she was “a thousand percent” known as the girl who used to be a child star, said Rachel Bloom, star of the CW’s “Crazy Ex-Girlfriend” and Wilson’s former classmate there.

“I remember the first time she brought ‘it’ up. I was, like, ‘Wait! Wait! You’re Matlida! I was such a fan,’” said Bloom, who met Wilson while hanging lights in a theater tech class freshman year. “I’d heard a couple people be, like, ‘She’s not that friendly. She’s kind of cynical and dark.’ She was a child star, so people expect her to be bubbly and happy. But she was this dark and neurotic Jew from Los Angeles, and I thought she was awesome.”

Mara Wilson

(Christina House / For The Times )

The fact that Wilson even went to college is a rarity for a kid actor. Most young stars decide to strike while the iron is hot -- meaning keep acting while they still look fresh-faced -- instead of pursuing higher education. Wilson credits her interest in education to her parents, both of whom attended Northwestern University on scholarships. Her mother, who served as her manager, died from cancer when Wilson was just 8.

“Her mom treated her so differently than most of these kids’ moms,” said Bonnie Liedtke, who was Wilson’s agent for 10 years and also represented Leonardo DiCaprio and Zac Efron when they were kids. “We were on a set in Chicago once, and she needed to go to the ladies room. They radioed in two ADs to escort her, and Mara’s mother screamed at them. ‘She’s just going to the restroom! She needs to be a normal kid!’ She made sure she kept it as humble and normal as possible, and Mara was able to hold on to that.”

“The only stars are in the sky.” That was the credo in the Wilson home. Any money she made on film sets was put far away in saving accounts that she wasn’t allowed to touch. Once, when she was shopping for dorm room supplies at Target, Wilson got into a fight with her father because she wanted to buy some slightly pricier items. She was paying her own tuition, she argued, so why shouldn’t she be able to get whatever she wanted at Target?

“And he said, ‘Do you understand how much sacrifice it took on our part to get you those places?’” she said, taking a bite out of a miniature cucumber sandwich. “‘You wanted to keep acting, and we were the ones driving you everywhere and with you on set the whole time. That was work for us too, but we never got paid for it and we’re never going to get paid for it.’ That was sort of this reality check for me, like, ‘Oh, right, this actually did take a lot of sacrifice.’”

Her ability to step outside herself is evident in “Where Am I Now?,” in which she talks about the harsh realities of the movie business without letting emotion overwhelm her. Of those awkward post-puberty years, she writes: “As I saw it, when it came to careers, I had three choices: get cosmetic surgery and go out on auditions for the cute and funny best friend characters, stay the way I was and go out for the meager character actor roles for young women, or accept myself and give up the idea of a Hollywood film acting career.”

She went with the latter option, primarily as a means of self-protection: “If I was going to break up with Hollywood,” she writes, “I wanted it to be mutual.”

Wilson still acts occasionally — just not on the big screen. She does a lot of voice work, most recently on “BoJack Horseman.” And she hosts a show at New York’s Public Theater called “What Are You Afraid Of?” about people’s phobias.

Sometimes, she said, she misses being on film sets, which she has plenty of warm memories from.

“One thing I always loved was the rolling chorus — when they’d call ‘speed, marker, background, action,’” she remembered. “The sound of it was comforting to me. I took note of the different ways directors said action. Chris Columbus would kind of stretch it out. And Danny DeVito would yell ‘cut’ just by making weird noises.”

But writing has brought her a different kind of fulfillment. She’s currently working on a couple of pilots and a graphic novel. And she’s still very active on Twitter, where last month she revealed to her followers that she identifies as “bi/queer.”

“It wasn’t until I was well into my 20s that I was, like, I’m going to need to face the fact that I definitely had a crush with Lucy Liu when I was on a sitcom with her,” she said with a laugh. “I’m not just attracted to one gender. I’m attracted to men, women — some people who don’t really consider themselves either. I think that it kind of explains some things about me — just puts them into perspective. That I used to pretend to be a carpenter in kindergarten. That one day I was really sad that Lucy Liu didn’t show up to set because she had food poisoning.”

For someone who has lived her life with an audience since she was a girl, it makes sense that Wilson is most comfortable finding herself in public. But in a way, it seems that she’s always known how her story would play out.

“I might not want to be an actress all of my life,” the 7 year-old told Couric in that “Today” show interview.

“I understand you’re thinking about becoming a screenwriter,” Couric replied. “Have you written any scripts yet?”

“No,” Wilson answered. “I have a lot of them in my head.”

“Well, good,” Couric said. “I think you’ve got a lot of stuff in your head, Mara.”

Mara Wilson reads from “Where Am I Now?”

Where: Barnes & Noble at the Grove, 189 Grove Drive, Los Angeles

When: 7 p.m. Sept. 20

Admission: Free, wristbands required

[email protected]

To read the article in Spanish, click here

Follow me on Twitter @AmyKinLA