3 Idiots is a 2009 Bollywood film starring Aamir Khan, Sharman Joshi and R. Madhavan. It is based on the book 'Five Point Someone' by Chetan Bhagat.It revolves around three students studying in the Imperial College of Engineering, Delhi. Out of them, Raju Rastogi (Sharman Joshi) comes from a poor family and is desperate to pass and get a good job. The second, Farhan Qureshi (R. Madhavan), comes from a relatively better family, but has joined engineering to please his father, while he really wants to become a widlife photographer. However, their third roommate, Ranchoddas Chanchhad AKA Phunsuk Wangdu is a radical-thinking young man, who challenges the educational system at every step he takes, infuriating the headmaster of the school, Viru Sahastrabuddhe (Boman Irani).Many years after they've graduated, they've all lost touch. Farhan gets a call from an old college-mate of theirs, Chatur Ramalingam, who says he has found Rancho. Abandoning everything, Chatur, Farhan and Raju set out on a road trip, to find him. But all is not as it seems..
Tropes appearing in 3 Idiots include:
Arc Words: "Aal Izz Well". In the climax of the movie, saying them even helps to awaken an apparently stillborn baby!
Artistic License: Chatur shows off his possessions since his job abroad, including his "new Lamborghini, 6496cc, very fast". He refers to the Murcielago. What he shows on his phone, however, is the Diablo, a decade-old Lamborghini, a thousand cc's less, and not so fast.
The Cake Is a Lie: "Virus" challenges Rancho to teach his engineering class. He has the students define a fictitious term to make a point about how the proper method of teaching.
Candid Camera Prank: Two pranks within one. Chatur gets the librarian to write a speech for him to recite on Teacher's Day. Rancho and Farhan divert both Chatur (with a prank phone call) and the librarian (by telling him Virus was remembering him, which he understood as Virus calling him over), and then changed some of the words of the speech. Chatur didn't even ask what it means, but memorised it without thinking. Hilarity Ensues.
The film begins with one such prank by Farhan to stay in Delhi to meet Raju, to find their long lost friend.
Chekhov's Gun: Rancho made an inverter that could draw out power from car batteries named after Virus in an attempt get out of Pia's wedding. It ended up powering the equipment for Mona's birth.
Also, mint sauce. It was first used by Rancho on Suhas' shoes to show his personality to Pia. It's later used by Raju for the same purpose (to show Pia that Suhas' personality hasn't changed) and also to distract Suhas long enough for Farhan and Raju to steal away with Pia.
Chekhov's Gunman: "Phunsuk Wangdu", the famous scientist Chatur is hoping to strike a deal with, turns out to be Rancho's real name.
Chekhov's Skill: Whenever Rancho said "Aal Izz Well" to Mona while she was pregnant, the baby kicked. Guess what woke up the stillborn baby?
Christmas Cake: Raju's elder sister is twenty-eight and unmarried, a major cause of worry for their mother.
Dope Slap: Given to Chatur by Virus after the former recites the teacher's day speech edited by Rancho filled with words that made the speech offensive. Particularly the 'Sanskrit Verse' at the end of the speech.
Driven to Suicide: Joy, a friend of the trio. Raju attempts this too, but is luckily saved in time.
Evil Gloating: Chatur at the beginning of the movie, showing off his mansion, car, job etc. to Farhan and Raju. Well, not evil, so much as just 'I'm more successful than you despite the fact that you scored better'.
And again with Rancho at the end of the movie, before he learns that Rancho is Phunsuk Wangdu, the very man his company is going to sign a deal with.
Gasshole: Chatur, oh so much. Becomes a Running Gag.
Sesquipedalian Loquaciousness: Invoked when one of the teachers seems more impressed by Chatur giving an overly complicated definition of the word 'machine' memorized from a textbook instead of Rancho's simplified one, so in response Rancho gives one himself when wanting to go collect his books.
Smug Snake: Chatur in the present-day portions of the movie. Until he's promptly shut up in the climax.
The Minister invited for the Teacher's Day function at the college, when Chatur is talking about the Principal in the Teacher's Day speech. Until he starts talking about the Minister himself.
True Companions: The eponymous three idiots. So much so that Farhan and Raju travel from Delhi to Shimla (a whole state away) only to realise that a Red Herring led them there and Rancho is really in Ladakh (which is a cold and barren desert, another couple of states away). They don't stop till they find him.