I have been really busy with some personal stuff. Putting some trivia notes for now:
1. I tried to compile a list with all the songs that appeared in the beautiful piano montage sequence in AndhaDhun. There are about fifteen songs missing as it was really hard to find more information on them.
2. In AndhaDhun, there is a scene when Manohar (Manav Vij) picks up a laughing Buddha statue from Simi's (Tabu's) office. I thought that this would come up again but it never did. However, it was clarified in the film's script which mentions that Simi owned a Feng Shui shop and the Buddha is how the Manohar’s wife Rasika finds about their affair.
3. In AndhaDhun, Simi is shown reading Sujatha Rangarajan's Anita: A Trophy Wife which is about the strained relationship between a middle-aged man and a beautiful young woman and a murder, just like it happens in the film. The script originally mentioned Agatha Christie's Hickory Dickory Death.
4. The YouTube comment that was shown in AndhaDhun was written by Surfing Ghost who, in fact, is the film's actual writer(s). After the film released, the same user commented again.
5. Mirror scenes of Shah Rukh Khan and Aamir Khan.
Shah Rukh Khan
Aamir Khan
6. Poster similarity—Roy and The Accidental Prime Minister.
7. Tabu with guns—AndhaDhun, Maachis, Haider, Fanaa, and Maqbool.
Dialogue of the Day:
"Kuch chheejein adhure hone ke wajah se hi puri hoti hain."
—Sophie, AndhaDhun