Remember to respect others privacy and especially home life. Do not fly above other peoples homes in a disturbing manner or publish photos of people without their consent.
Crimelaw prohibits the photographing or surveilance of people in private areas such as homes. You don't need a permission from people if you are filming in a public place like a marketplace.
Filming is allowed in streets, roads, forests, market squares or other such public places, but publishing pictures where a single individual can be recognised might not always be allowed. Make sure that these types of pictures are not violating anyones privacy or showing them in unfavourable pictures that could be defamatory.