Here are some of the writing techniques that you need to know when editing an article.
The word/phrases "that", "suddenly" and "all of a sudden" are considered pointless and should not be used in articles.
Kevin and Jerry are fighting outside Gru's house. Suddenly, Eduardo kidnaps them with his airship.
Kevin and Jerry are fighting outside Gru's house. Eduardo kidnaps them with his airship. - Corrected
Gru announces to the girls that he works with the Anti-Villain League.
Gru announces to the girls he works with the Anti-Villain League. - Corrected
Do not write about a character from an out-of-universe perspective. However, you are allowed to do so in the Trivia and Appearances in Other Media section, or if it's intentional (eg: Minions' auditioning for the the film Minions).
Lucy Wilde is one of the main protagonists in Despicable Me 2.
Lucy Wilde is a rookie agent of the Anti-Villain League. - Corrected
U.S. English only
Title says it all.
Minions are shown to be skilful.
Minions are shown to be skillful. - Corrected
Use present tense
Do not use past tense unless you are talking about something that has already happened before the events taking place in the movie (eg: under "History" section in articles).
Eduardo discovered that Gru and Lucy works for the Anti-Villain League.
Eduardo discovers that Gru and Lucy works for the Anti-Villain League. - Corrected