Another shell has been fired from Syria and landed in Turkey. The shell hit near the Turkish town of Akcakale, no casualties have been reported according to Turkish broadcasters.
Turkish artillery returned fire at Syria for fifth day.
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Activists, including a young woman wearing a head scarf, spoke out in turn in front of the cameras assembled to hear leader Paul Nuttall.
Mr Farron's bizarre comment was made to an activist who came to watch the party leader speak in Cambridge on Thursday.
The US actor starred in Disney's 2004 film Miracle, chronicling the US men's hockey team at the 1980 Winter Olympics.