On A Clear Day (2006)

Frank is a hard-working 55-year-old, respected in his local community, who suddenly finds himself without a job. For the first time in his life, Frank is without direction. When his friend Danny jokes that on a clear day he could swim to France, an idea is planted in his mind. Concealing his plans from his loving wife Joan, Frank determines to put his life back together by attempting the ultimate test of endurance - to swim the English Channel.