英语定语从句问题i have seen the film Titanic,and ----leading actor i

连词and 连接的是两个完整的句子,前面i have seen the film Titanic是一个结构完整的句子,后面its leading actor is my favourite是另外一个成分完整的句子,and把这两个句子连接在一起.
如果用whose,应该是i have seen the film Titanic,whose leading actor is my favourite.用whose来引导一个定语从句,修饰前面的电影.