It's even more awesome when Trunchbull smashes the glass platter over his head. While that is a bad thing to do to a kid it gives two more awesome points for Bruce: 1. Being that he is durable enough to take a heavy glass platter over the head with nothing short of a loud belch. 2. It gives Bruce the satisfaction that the aforementioned action meant he got to Trunchbull showing us a glimpse of her Villainous Breakdown.
He gets a second moment at the end. As all the kids are throwing water balloons, he smears a cake across the Trunchbull's mouth.
Miss Honey also gets a slight one when she finally stands up to the Trunchbull.
Miss Honey: I am not seven years old anymore, Aunt Trunchbull!
Miss Honey also gets one in both the book and the film when she calls Mr. Wormwood out for considering some stupid T.V. show (in the book, it was a soap opera; in the movie, it was a televised boxing match) more important than his daughter.
And again when Matilda's dad makes disparaging comments about college-educated people and Miss Honey points out that educated people have a place in the world (if, Heaven forbid, Matilda's dad had a heart attack, the doctor that cared for him would have been college-educated or, if Matilda's dad was sued for selling faulty cars, his lawyer would have been college-educated).
Mr Wormwood: What car? Sued by who? Who have you been talking to?!
Matilda's class standing up to the Trunchbull in the musical. By misspelling words.
The end of the film version of Matilda features this scene at the end when Matilda's family is forced to leave the country.:
Matilda: I love it here! I love my school; it isn't fair! Miss Honey, please don't let them...
Harry Wormwood: [interrupting] Get in the car, Melinda!
Harry Wormwood: Whatever.
Matilda: I want to stay with Miss Honey.
Zimmia Wormwood: Miss Honey doesn't want you. Why would she want some snotty, disobedient kid?
Miss Honey: Because she's a spectacularly wonderful child, and I love her!
Doubles as a Crowning Moment of Funny, but:
Matilda: Here, I've got the adoption papers right here!
Zinnia Wormwood: Where did you get those?
Matilda: [Gives her a triumphant look] From the library! I've had them since I was old enough to xerox!
Also a Crowning Moment of Heartwarming. The entire story. This is a movie about two people who grew up in horrifically abusive households—one whose biological parents neglected her and mentally and emotionally abused her, and one whose parents loved her very much but died, and who was effectively fostered into a physically and emotionally abusive household. Both are very strong young women, who are intelligent and capable and powerful—but whose guardians terrify them and who remain under said guardians' care because they are afraid. They are not demonized or chastised or portrayed as weak because of it, because their fears are realistic. This is a movie where those guardians were wrong. There's no message that "we loved you but didn't know how to show it"; at no point is it implied that "You have to love them, they're your family". It's not a case of "pity the bully, because they're victims too!" No. They are abusive, they are cruel, and they are wrong. And at the end, Matilda escapes from her abusive guardians and finds a true family, with someone who loves her. Miss Honey, as an adoptive single mother, is portrayed as Matilda's true family because she loves her. Just imagine being a child in a neglectful or abusive household, and seeing that kind of message in a popular movie for the first time...
Yet another level: The "Would your parents believe you?" "...No" aspect of the film. Just because nobody believes your stories of abuse, just because you're not taken seriously because you're just a kid, that doesn't make you a liar.
"I'm big, you're little. I'm right, and you're wrong!" Not true, Jerkass.