your pritty much allowed any thing just at take off and landing (its so they dont obstruct you getting off in case of emergancy, dont use your phone because it will kill the battery after 1 film, some flights offer in flight use of phone but unless youve got a money tree dont use it its liek £1 for a text and like £3 a min so make sure its on flight mode. best bet is buy a decent dvd player you can get a phillips one for about £50 and some dvds make sure ur dvd player has a battery and consider buying an extra one