Cast member Lindsay Lohan (C) poses with her mother Dina (R) and her sister Aliana at the premiere of 'Just My Luck' at the Mann National theater in Los Angeles May 9, 2006. [Agencies]

Actress Lindsay Lohan's kid sister, Ali, is following in the movie footsteps of her older sibling as she shoots her big-screen debut in a film based on R.L. Stine's pre-teen book series "Mostly Ghostly."

Ali Lohan, 14, has been cast in the film as a popular high school student, emulating the type of role played by sister Lindsay in the 2004 film comedy "Mean Girls," the younger Lohan's spokeswoman said on Tuesday.

The "Mostly Ghostly" film is based on the series of books about the adventures of an 11-year-old boy who has two ghosts living in his bedroom, said the spokeswoman, Melissa Raub Vogel.

As first reported by People magazine's Web site, the film is slated for release later this year, but Raub Vogel said the movie has no distributor yet.

While "Mostly Ghostly" would mark Ali Lohan's feature acting debut, she made an uncredited cameo in her older sister's 1998 film "The Parent Trap," appearing as a young child in an airport, according to the Internet Movie Database, imdb.com.

She also is due to appear with her mother and manager, Dina Lohan, in a reality show "Living Lohan," set to air this summer on the E! Entertainment Television cable network.

Ali, whose full first name is Aliana, began modeling as a child and recorded an album of Christmas songs, titled "Lohan Holiday," which was released in late 2006.

Lindsay Lohan, 21, whose personal life took tumble last year as she struggled with drug and alcohol abuse, as stayed mostly out of the Hollywood limelight in recent months.