Film schools and letters of recommendation

<p>This might sound a little dumb but, should letters of recommendation from teachers include film related content? This confuses me a little because what happens if for example my science teacher writes me a letter? Sadly my TV Prod teacher left the school last year and I am taking TV Prod again next year as a Senior with a new teacher. Even if he doesn't know me super well should I still try to get a letter of recommendation from him mostly because of the fact that he teaches TV Prod? Sorry if this confuses anybody.</p>