Article: New Haven was the location of one of Jim Morrison's infamous arrests while he fronted the rock group The Doors. The near-riotous concert and arrest in 1967 at the New Haven Arena was commemorated by Morrison in the lyrics to "Peace Frog" which include the line "...blood in the streets in the town of New Haven..." This was the first time a rock star had ever been arrested in concert.[citation needed] This event is portrayed in the movie The Doors (1991), starring Val Kilmer as Morrison, with a concert hall in Los Angeles used to depict the New Haven Arena.

Now answer this question: The movie The Doors however did not film at New Haven, instead where did they film the reenactment?
Los Angeles
In the passage, it is mentioned that the movie The Doors reenacts a concert at New Haven in which Jim Morrison was arrested. But they did not film the scene in New Haven itself but rather filmed it in Los Angeles.