[JURIST] The United States Court of Appeals for the First Circuit [official website] Friday ruled [opinion, PDF] that there is a clearly-established First Amendment [Cornell LII backgrounder] right to film police officers performing their duties in a public space. The case stems from a 2007 incident, when police officers arrested Simon Gilk after he openly recorded three police officers arresting a suspect on the Boston Common. Circuit Judge Kermit Lipez, speaking for the unanimous three-judge panel, rejected the officers claim…