Wren is invited to a Halloween party by her crush, Aaron Riley, but she is also forced by her mother to take her oddball little brother Albert with her when she goes out trick-or-treating on Halloween. When she goes to the party instead, she loses him and must find him before her mother finds out.
You can now watch Fun Size online on the following streaming providers in the United States.
| Directing | Josh Schwartz | Director |
| Production | Stephanie Savage | Producer |
| Production | Josh Schwartz | Producer |
| Editing | Michael L. Sale | Editor |
| Production | Alyssa Weisberg | Casting |
| Art | Mark White | Production Design |
| Art | Lauren Fitzsimmons | Art Direction |
| Writing | Max Werner | Screenplay |
| Camera | Yaron Orbach | Director of Photography |
| Editing | Wendy Greene Bricmont | Editor |
| Art | Jennifer Lukehart | Set Decoration |
| Costume & Make-Up | Eric Daman | Costume Design |
| Production | Samson Mucke | Unit Production Manager |
| Crew | Valerie Flueger Veras | Post Production Supervisor |
| Directing | Mark Anthony Little | First Assistant Director |
| Directing | Jason Roberts | Second Assistant Director |
| Directing | Nicole Rodgers | Second Second Assistant Director |
| Directing | Scott Rorie | Second Assistant Director |
| Crew | Abby Burr | Stunt Double |
| Crew | Jillian Cole | Stunt Double |
| Crew | Tom Dziak | Stunt Driver |
| Crew | Richard Fike | Stunt Coordinator |
| Crew | Sara Fike | Stunt Driver |
| Crew | Konner Lashley | Stunt Double |
| Crew | John Sundquist | Stunt Double |
| Camera | Spencer Gillis | Second Assistant "A" Camera |
| Sound | Deborah Lurie | Music |
| Production | David Kanter | Producer |
| Production | Steve Golin | Executive Producer |
| Production | Michael Beugg | Executive Producer |
| Production | Paul Green | Executive Producer |
| Production | Riley Flanagan | Location Production Assistant |
