Nickelodeon star Victoria Justice ventures onto the big screen in this hokey Halloween misadventure. She plays Wren, who has more to contend with than most teens: her father is dead, her mom (Chelsea Handler) runs around with a boy-toy half her age, and Albert (Jackson Nicoll), her doughy younger brother, gleefully pinches a loaf while she's in the shower. Even a coveted invitation to the hot guy's Halloween bash has a bittersweet downside when Wren's mom takes off and leaves her daughter to chaperone Albert's trick-or-treating. As the night wears on, Fun Size moves in unexpected directions and first-time director Josh Schwartz mixes Jekyll and Hyde with Nickelodeon-nice air kisses and sour forays into fart humor. Justice carries it all well, while Nicoll, in mini-Silent Jay mode, shows a precocious knack for the scatological. Such treats aside, however, this Size doesn't matter.
