Ali Lohan will follow in her big sister's steps by starring in her first feature film, 'Mostly Ghostly.' People reports that the 14-year-old younger sibling of Lindsay Lohan has already begun shooting in Los Angeles. She'll play "a popular high school senior" in the movie, says a source.

The motion picture is based on the preteen book series 'Mostly Ghostly' by R.L. Stine in which an 11-year-old boy befriends two ghosts. Look for Ali on the big screen later this year.