She’s a real movie nut.

A Long Island woman got so upset when the toddler sitting next to her at “Star Wars: The Last Jedi” asked for popcorn that she allegedly dumped a tub of the snack on the kid’s head, cops said.

Keri Karman, 25, was arrested Friday for the Jan. 2 dust-up at the AMC Dine-In in Levittown, along with her dad, Charles Karman, 61, who investigators said did nothing to stop the one-sided food fight.

Keri Karman allegedly got poppin’ mad as she sat next to Celia Riggs and Riggs’ 2-year-old daughter, Harley, because the baby pleaded for food during a showing of the PG-13 blockbuster.

“All she said was ‘popcorn.’ She didn’t even say a full sentence,” Riggs, 28, told The Post.

When the mom told Karman not speak to her daughter, Karman began to yell and curse, cops said. She also put her middle finger up to the baby’s cheek, Riggs alleged.

Karman then allegedly dumped Riggs’ $8.99 bucket of popcorn over the kid’s head, hit her with the hardened paper tub before she and her dad fled the theater through the fire exit.

Harley burst into tears.

“I just wanted to get my daughter out to safety,” Riggs said. “I ran out with her. She was crying a lot.”

One theater worker suggested Karman got her bad manners from her dad, claiming the elder Karman once became disruptive while arguing over a seat.

“He is a troublemaker,” the worker said.

After the popcorn clash, Riggs held her baby in her lap and tried to calm her down as they waited for police.

“The mother was extremely frustrated that [they] did that,” said a woman who was working the night of the incident.

Harley was left with a bruise, police said.

Riggs was watching the movie with her husband, three kids and mom. The bizarre incident unfolded when hubby Scott slipped out to use the bathroom.

Karman, who runs a dog-walking service and is studying to become a physician assistant, loves kids and would never attack a child, her friend said.

“Too bad you didn’t hear the real story!! When asked to quiet the kid, the mother pushed Keri and the popcorn went flying,” Abby Levitt Ferrara wrote on Facebook. “Keri never raised a hand in any way . . . there is not an aggressive bone in Keri’s body.”

Riggs said that she never pushed Karman, but that the deranged theatergoer actually stepped around her to grab the popcorn.

She also denied her daughter had been disruptive.

“No one else complained about her. If she was this screaming monster child, someone else might have said something, and between the adults she was with, someone would have taken her out,” she said.

Since the incident, the mom has noticed character changes in her young daughter.

“She says, ‘My head, my head,’ when she looks at popcorn and is afraid of strangers. She’ll grab me and hide when the waiter comes up,” Riggs said.

Keri Karman, who did not respond to messages, and Charles Karman were charged with endangering the welfare of a child.

Additional reporting by Jennifer Bain