Complex sentence: You are quite welcome to do your pre-internet Phillipines research and write about the other two films, but you would likely have to fly there and hire a local to visit libraries and universities for hard-copy non-English news sources unavailable online.
Split into simpler sentences: You are quite welcome to do your pre-internet Phillipines research and write about the other two film. You may have to fly there and hire a local to visit libraries and universities for hard-copy non-English news sources unavailable online.