The improv scene is Berlin is well-established, with at least two well respected troupes offering English language shows every week — for keen observer of English comedy and improv, you can find something most nights. That’s one of the reasons that IMPROV 2016 is so important: it legitimizes Berlin’s entire improv scene. This year, the theme of the 15th annual IMPROV festival is ‘Borders. Limits. Liberty,’ a theme justified by the fact that they’ve invited improvisers from Algeria, Lebanon and Syria for the showcase, modeling intercultural clashes as the players meet, discover, misunderstand, and ultimately, get along with each other.