Awesome moments specific to the 1971 film adaptation go here.
A small one: the owner of the sweet shop where Charlie finds his ticket telling the adults who are trying to force the poor kid into selling it to them to back off. This is faithfully incorporated into the 2005 film.
Grandpa Joe gets most of the glory since he accompanies Charlie to Willy Wonka's factory, but grumpy Grandpa George has a CMoA when he responds to Charlie's suggestion that they sell his golden ticket by telling him, "There's plenty of money out there. They print more every day. But this ticket — there's only five of them in the whole world, and that's all there's ever going to be. Only a dummy would give this up for something as common as money. Are you a dummy?...Then get that mud off your pants. You've got a factory to go to!"
It's the fact that he's The Eeyore at all other times that makes his advice (happiness is better than money) so touching.
While people are rightfully going to have more fond memories of the Oompa-Loompa songs from the original (especially with that catchy refrain), Danny Elfman's ability to take the lyrics from Dahl's novel and set them to various musical genres is commendable in itself. It may not eternally memorable, but it doesn't make the sequences any less fun.
Each musical number is a fun little parody/Expy and they have a number of Genius Bonus shout-outs. Augustus Gloop nods to Bollywood musical numbers (at the suggestion of Deep Roy), Violet Beauregarde is a little nod to techno/funk; Veruca Salt is a gentle ballad with a Beatles vibe; and Mike Teavee has punk anger and a spray of pop-culture references (along with another nod to the Beatles in its bridge).
Wonka gets his CMoA when Veruca adamantly continues to demand a squirrel despite his already having turned down her father's offer to buy one for her. Wonka's response? He imitates Mr. Salt perfectly ("I'm sorry, darling. Mr. Wonka's being unreasonable.") just to mock them. (Also a Funny Moment.)
Mr. Salt standing up to Veruca for the first time in her life at the end of the film.
2013 Stage Musical
"It Must Be Believed to Be Seen", the Act One finale and Willy Wonka's introductory song, is a terrific song in and of itself. The staging makes it even more spectacular — the Obfuscating Disability trick that sets up an Instant Costume Change...the entire assembled crowd of Golden Ticket finders and press becoming a troupe of backup dancers seemingly out of sheer reverence...the gloomy factory's windows first being lit up with a deft wave of his cane and then changing colors until the whole place looks like the mothership from Close Encounters of the Third Kind...the delightfully ominous Door Closes Ending. If the right kind of Large Ham is playing Wonka (and Douglas Hodge, the role originator, was indeed that), the cumulative effect of all this is a sense of sheer power rolling over the audience.