“You’re right to refer to me as a mega-huge Hollywood star,” deadpans Larry David. “That’s totally accurate”. It’s not often that such a comedy titan pops up in a true crime documentary.

Long Shot (Netflix) not only tells an extraordinary needle-in-a-haystack story but cannily times its release to coincide with David fever this weekend, when his HBO comedy Curb Your Enthusiasm makes its slaveringly awaited return after six years off our screens.

This fascinating gem of a 40-minute film examines how how the fate of a man accused of murder rested on proving he was in a crowd of 54,000 at a baseball game – and how a certain misanthropic sitcom accidentally saved his life.

In May 2003, 16-year-old Martha Puebla was shot in the head on the doorstep of her Los Angeles home, days after testifying in a gangland murder trial. Police arrested 24-year-old Juan Catalan at gunpoint, alleging that he’d carried out the hit for his gangster brother Mario.