Bella Thorne will be having a very bad day in October…

Disney has released the official trailer for Alexander and the Terrible, Horrible, No Good, Very Bad Day, featuring the16-year-old half-Cuban American actress and former Disney Channel star.

The film adaptation of Judith Viorst’s book of the same name centers on 11-year-old Alexander (portrayed by Ed Oxenbould). Just when Alexander starts having the worst day of his life, he discovers all of his family members (Steve Carell, Jennifer Garner, Dylan Minnette and Kerris Dorsey) are having bad days of their own.

Thorne portrays Celia, the girlfriend of Alexander’s older brother.

The film, which was directed by Miguel Arteta, also stars Megan Mullally and Jennifer Coolidge.

Alexander and the Terrible, Horrible, No Good, Very Bad Day will open in theaters on October 10.