Continuity mistake: While Annie and Stacks are in the Stacks Mobile helicopter, Annie's seatbelt shoulder strap repeatedly changes from being over her shoulder properly to being under her arm. (01:03:00)
Visible crew/equipment: While Annie, Miss Hannigan, and the inspector are in the bathroom, just as Annie says, "Bye, Mr Inspector," right above Miss Hannigan's hand we can see in the mirror's reflection that something dips into view, presumably the boom mic.
Factual error: When they are chasing Annie's fake parents into Liberty State park, the park is not located near the George Washington Bridge, as shown immediately before they entered the park, and NYPD would not give chase into the park, since Liberty State Park is located in New Jersey.
Continuity mistake: When Annie starts to sing 'I think I'm gonna like it', she jumps on some water stones. In one shot she jumps on the second stone, but when the angle changes, she lands on the first one.
Revealing mistake: While Miss Hannigan is singing "Little Girls", she sees one of her foster girls as a lamp on a table. As the camera and scene continue down the hall, a foot can be seen in the background as the girl jumps off the table to be replaced with a real lamp.
Other mistake: Will's rating increased by 5% because he saved Annie from being run over. A guy happened to be filming it happening and uploaded it online, but the uploaded footage is shot from two different angles.
Plot hole: After Hannigan feels guilty for what she did, she confesses to the girls, and they find Mr. Stacks to tell him. The fact is, they went straight to where he worked - but Annie never told them the destination, and Guy himself never told Hannigan where it was either. So, how did they get there, and most importantly, know where it was?
Continuity mistake: When Miss Hannigan is in the kitchen mixing things in the blender the blender is full of liquid. The amount of liquid changes to about half full.
Continuity mistake: When Stacks spits the mashed potatoes on the homeless' face he has bits all over. In the side shots his face is clean. This changes back and forth.
Continuity mistake: When Hannigan throws the Annie shirt at Lou he picks it up in one hand and moves it to the other hand which he lifts up in the next shot but when he does it is either in the original hand and out of frame or else completely disappeared.
Answer: Nash.