That’s not a twist ending. A twist ending is an ending that makes you re-evaluate everthing that has gone before in the light of new evidence that radically alters the meaning of those scenes. A twist ending would be something like finding out that Remy is just a regular rat, and all the stuff about him being a cook was Linguini’s hallucination. This was just a movie that ended in a way you didn’t expect.
Well, it’s not entirely clear what the situation is at the end of the movie, I’ll give you that. Did it become public knowledge that Remy is a gourmet chef, or did it simply become public knowledge that the kitchen at Gusteau’s was swarming with vermin? If it’s the latter, then there’s no real problem. Remy, Linguini, Anton, and Collette simply open up a quiet little restaurant, do what they love, and nobody is the wiser. Skinner already got Gusteau’s shut down, so he may be satisfied that he’s got his revenge, and not pursue the matter any further, and that’s the end of things. Everyone lives happily ever after.
The other option is that it becomes public knowledge that Remy can cook. Certainly, the health inspector and Skinner both have some pretty unusual stories about rodent behavior to tell. Gusteau’s gets closed down for gross violations of the public health code in the immediate aftermath of the revelation, but in the months afterwards, the novelty of Remy’s abilities makes it possible for Anton and Linguini to cut a deal with the health department to make an exception for Remy, and the restaurant becomes known as the place with the gourmet rat. The rodent cafe and little bronze ladder attached to the kitchen door that Remy stands on at the very end seems to speak to this scenario, and it ties in with one of the movie’s themes of personal honesty and progressive social change.
I don’t think it’s unusual for a person to want recognition for his work. Remy makes one big mistake at the end of the second act, when he lets his family into the restaurant to rob the place, but the actual public reveal of his role is entirely up to Linguini. He’s the one who spills the beans to the kitchen staff, and he’s the one who ultimatly refuses to take credit for the meal in Anton’s review. Plus, the over-riding theme of the entire movie is being true to yourself, so at some point, Remy has to reveal that he’s the one doing all the cooking, or the film would sabotage it’s own message. Plus, while it would be refreshing if the movie had gone ahead and endorsed lying and deception as viable strategies for success, that’s asking a bit much from a children’s film.
The easiest and most obvious explanation is that he didn’t mention the bits about super intelligent rats when he made his report. He just said there were a lot of rats in the kitchen, and that was enough to shut the place down. He doesn’t have to say anything about being tied up. The alternative is that Remy and Linguini have decided to be completely open about what Remy can do, so when the inspector makes his report (supported by Skinner, who was tied up next to him) they don’t try to deny it.
As for the point, it was an effective way of ratcheting up the tension of the final scene. It was a great sight gag: I think the shot of the inspector walking into the kitchen and seeing all the rats got some of the biggest laughs out of the entire film. It tied Skinner, the movie’s villain, into the climactic action, instead of just leaving him twisting in the breeze. And it cemented the theme of self-sacrifice: Linguini gives up his restaurant because it’s important to him that his friend receive the credit he deserves, just as Anton sacrifices his reputation as a food critic to endorse an artist whom he admires.
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Well, that was a weird edit. Let me try that again… Anyway: