Continuity mistake: When Corrina leaves Molly's house for the first time, we see her pick an orange off the tree and walk away. She then turns around and tosses the orange to Molly. The next shot of Corrina shows her walking away with another orange in her hand. She only picked one, and threw it to Molly.
Suggested correction: Actually, Molly throws the orange back to Corrina. If you look, Molly no longer has the orange after she honks the horn on her tricycle. This is part of the reason Molly's dad hires Corrina.