Movie about 2 neighbors who run over a bicyclist

It is 1967, and Larry Gopnik, a physics professor at a quiet Midwestern university, has just been informed by his wife Judith that she is leaving him. She has fallen in love with one of his more pompous acquaintances Sy Ableman.

Two groups of filmmakers encounter each other, but one is involved in murders.

Two friends spy on a neighbor.

The budding friendship between two very different neighbors takes a tragic turn when David runs over a young woman and causes her death. At Robert's insistence David leaves her lying and flees. While Robert hopes his new neighbor will now be irreversibly bound to him, David is increasingly devoured by feelings of guilt. When he meets Vanessa, the sister of his victim, he believes he can put things right. But he hasn't taken Robert into account. Robert is prepared to do anything to keep his neighbor to himself.

Two neighbors live peacefully in the desert among the rocks. Their routine will be disrupted by the sudden arrival of a lawn mower.

A nightmarish evening unfolds for David, a former New York Times journalist, when he and his strange new neighbor Robert, accidentally hit a girl on her bike. Buzzed and disoriented, David lets Robert convince him to flee the scene and leave the girl for dead, in order to protect his career. Robert shows no remorse, and in the name of friendship he does unspeakable things to protect the secret. Now that the police are full-on hunting for the hit-and-run killer, things begin to spiral out of control when David’s local newspaper sends him to cover the story where he meets the deceased girl’s sister Vanessa. Despite the circumstances, and her deep desire to find her sister’s killer, the two immediately have a romantic connection, which surprises and haunts David, while pushing Robert to take brutal steps to keep his new friend to himself.

A couple having an affair strike a bicyclist with their car and do not offer aid out of fear of their relationship being exposed.

A boy steals his neighbor's brand new bike with his friend. They go on a ride to the park, where the stolen bike is damaged. The boy is left to decide if he should tell the truth or protect his friend.