Question: How come Sadness was the only one who could change the emotion of the memory orb? Don't we sometimes look back at things we thought we were scared of or sad about, and laugh at them? How come the other emotions can't change them the way Sadness can?
Answer: Sadness can change the memories because of Riley's current situation: she has left the home she loved to move to a new city. This makes her happy memories more susceptible to being changed to sad memories. As she remembers things that used to make her happy they now make her sad because she hasn't accepted her new house as home yet. Presumably under the right circumstances the other emotions could do the same thing, just not all the time.
Question: When Arlo and Spot first see another human, Spot moves toward that human as if he was willing to join him to bond as a family. Arlo stops Spot from approaching the other human and places him on his back so to continue taking him home. Arlo decides he wants to share his family with Spot and keep him safe in his family house. By the end of the film, the same human Arlo and Spot saw in the distance earlier shows up along with his family. Spot joins the family. Why does Arlo decide to let Spot go this time?
Chosen answer: Because he's realized that Spot wants to go and should go with his people. Before he was afraid of losing him.
Question: The aliens in the form of Hall and Oates tell the heroes that the rules have been violated and they will attack. How and why were they violated?
Answer: The rules were violated when Eddie used cheat codes during the "Pac-Man" round in order to have an unfair advantage over the aliens; this is similar to how Xbox achievements and/or PS3/4 trophies are disabled when cheat codes are active.
Question: At the very ending, now that Dennis is a vampire, can the sun harm him even if he is the son of a human and a vampire?
Question: It is 1968, and in the trailer it says "42 B.G" which 42 years later would be 2010, which is the first film. But the ending of this movie implies that the minions have been working for Gru since he was a child. So why is "42 years Before Gru"?
Chosen answer: The writers wanted to keep Gru's cameo at the end of the film a secret for the fans of the franchise. So, saying "42 Years B.G" (before Gru) in the trailer doesn't give the surprise away.
Question: Slash filmed his role as a live-action character named Jerry Vadergeld and is even seen in the film's first trailer, but not in the actual movie. IMDb also says that Frankie Muniz has an uncredited role as a cop, but no police officers are found anywhere in the film. Other background characters (ex. The ice cream bikini girl, the two girls talking about the animated characters as superheroes), scenes (ex. Patrick and the bikini girl's three-scoop ice cream cone, Burger-Beard throwing a pair of plastic rings on Squidward's nose), and dialogue (ex. SpongeBob saying saying "This is uncomfortable!" and "Come on, team. Let's get that book back!") from the trailers were also not in the actual movie. Can anybody explain to me why all that is not in the actual movie?
Answer: The point of a trailer for a movie is to get bums on seats in cinemas so the film-makers have to make a film look really good and generate a "I really have to see this" vibe. Because virtually all professional films shoot far more material than they need, some of it will end up in the trailer as exclusive content and some will end up in the special features section of the DVD (bloopers, deleted scenes etc).
Question: Which kids do what acts for the talent show?
Answer: Sally is a rodeo star, Charlie Brown a magician.
Answer: Gorg was tracking the "shusher"