Goofs

The stage where Jiah Khan dances on the song "Latoo", increases in size and shape when the song starts. During the speeches the stage is extremely small and congested.

There is a scene where Sanjay Singhania (aamir khan) is giving interviews to media people, but in the end it is said that no one has ever seen Sanjay Singhania.

Aamir apparently doesn't remember for more than 15 min, but there are scenes where he seems to be alright for hours.

Gia Khan has never seen Asin, but when they were looking for the archives of newspaper to complete the story of Amir Khan she spotted the news paper correctly with Asin's photograph. How could she identify someone's picture when she had never seen her?

In an earlier scene, we see that the police officer found Sanjay's diaries and then a scuffle ensued leaving the place in disarray. When Sunita went to Sanjay's apartment shortly after, the police officer now bound and gagged in a cabinet, we see Sunita opening a drawer and finds the two diaries inside a drawer.

Sunita (Jia Khan) goes to library and gets a newspaper from archives department and takes it to the school, but in reality libraries never gives old newspapers to take home. And in the newspaper you can see girl's picture clearly printed on the front page but in reality you never find any such photographs without their face covered.

Sanjay Singhania (Aamir Khan) suffers from Anterograde Amnesia, whereby a person remembers everything before the incident which caused the problem. Therefore, he should have remembered his personal assistant as well as the flat which he bought for Kalpana (and later used as his base). However, he relies on photographs and notes to remember these things as well.

Aamir Khan is said to have short term memory loss, but he is shown to remember nothing - which is not actually short term memory loss.

A goon talking on the iPhone is holding the phone upside down. The black strip of the phone can be seen held against his ears.

Sunita hands over the footprint on cement as a gift to Sanjay. It is supposed to be of some weight but she hands it over like a piece of cardboard.

Aamir has the wound mark right across his head. But at the end of the movie, he has full grown hair with no visible mark., but hair cannot grow on wounds.

When a lady falls due to the auto rickshaw in which Sanjay is riding, she actually falls due to a unintentional hand push of Sanjay, which he does reflexively when touched by the lady's body.

When Aamir Khan leaves for London, he is shown entering the Bombay international airport. However, the internal shots of the airport are shot at the domestic airport.

It is shown that Sanjay reads the content of his diary in the hospital, with additional help from Sunitha. But it is practically impossible to know what happened in the past two years within 15 minutes. And adding to that, Sanjay shouts madly after knowing the "flashbacks" of his life, though he shouldn't be remembering anything.

When inspector Arjun Dev runs for Sanjay Singhania for the first time when Sanjay is in the bus. The inspector successfully enters the bus even after running for it, as the driver of the bus could stop it. When he gets in, Sanjay Singhania is missing. If he could have got off the bus, the inspector could have seen him, but he didn't - so where did he go?