- The actor Al Pacino originally dubbed the big villain Eduardo in the film, but unfortunately he later quit due to creative differences. The backup was American actor Benjamin Blatt.
- When the actors were dubbing, all their facial expressions and body language were filmed, and these materials were later used in the movie. Steve Carell’s wife likes to point out that Grew’s expressions are often made by Steve Carell.
- In the first part, there is a minion named Kevin, who has only one eye. In this film, Kevin has two eyes and a taller figure.
- In the film Lucy gave Grew his own phone number 626-584-5723. If you are in the United States, dial this number and you can hear a recording of a phone call recorded by Christine Wegg using Lucy's identity.
- When Ge Lu went underground for the first time in the film and went to see his minions, the audience could see several minions having lunch on the roof beams. A tribute to this famous photograph.
- At the beginning of the film, the audience can see several people in yellow clothes talking in a foreign language, which is a tribute to the prototype of the little yellow man. In fact, there was no such a design as a little yellow man. Because the cost of the first film was not enough, the director could only design a minion, but he didn't expect it to become popular.
- There is a section of playing table tennis with nunchakus in the film, which is a tribute to the Nokia N96 advertisement. In this advertisement, Nokia played Bruce Lee as Chen Guokun and asked him to play table tennis with a nunchaku.
- At the wedding of Gelug and Lucy, four minions wore white dresses and sang "I Swear" by All 4 Love. In the MV for the song of All 4 Love, four members wear white dresses.
Despicable Me 2 behind the scenes gags
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Lucy: [calmly] Don't worry about me, Gru! I'll be fine. I have survived lots worse than this...
[frantically]
Lucy: Okay, that's not entirely true, I'm actually kind of freaking out up here!
Gru: Don't worry, I will get you out of this!
[They both freeze when they see Pollito approach the remote control. They both gasp. Pollito narrows his eyes, then pecks the remote button]
Gru: [morosely] I *really* hate that chicken.
[the rocket launches]
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Gru: I'm a father now, with responsibilities, and a legitimate businessman. I'm developing a delicious line of jams and jellies.
Silas: [chuckles] Jams and jellies?
Gru: Oh, attitude. That's right! So thanks, but no thanks. And here's a tip: instead of tasing people and kidnapping them, maybe you should give them a call! Good day, Mr. Sheepsbutt.
Silas: Ramsbottom.
Gru: [chuckles sarcastically] Oh yeah, like that's any better.