Since taking the helm of Miramax as CEO four months ago, Bill Block has embarked on an aggressive restructuring of the film and television company founded by Bob and Harvey Weinstein in 1979. The first round of layoffs came in May, when he let 25 employees go. Today he laid off 20 more at the Santa Monica, California company, cutting the 100-person staff he inherited nearly in half. The Los Angeles Times first reported the news. “After careful consideration and consultation with the board,…