这道题里which和that都能用.因为which/that is suitable for you是定语从句修饰先行词movie为物体,movie在定语从句中用which/that替代,作定语从句的主语,所以不能省略,如果先行词在定于从句中作宾语,则引导词which/that都可以省略,比如this is the kind of movie i like.
若先行词是人,则只能用that引导,另外that还可以引导主语从句,宾语从句,表语从句等,而which不行.但在非限制性定语从句中,也就是引导词前面有个逗号的定语从句,就只能用which,不能用that.