All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
It is not permissible for your husband to video weddings [or any other festival] which contain some prohibitions, like women not wearing Hijab, forbidden mixing between men and women, consuming intoxicants, singing, musical instruments and the like. His earning from such a work is considered as a forbidden income; the ruling is the same whether he does so in the month of Ramadan or else, but in Ramadan the sin is graver.
Therefore, your husband is obliged to fear Allaah and avoid filming such prohibitions; sustaining hunger and thirst is easier than sustaining Hell fire. Allaah Says (what means): {So I have warned you of a Fire which is blazing. None will [enter to] burn therein except the most wretched one.}[Quran 92:14-15] It might be that if he endeavours to seek a job, Allaah will facilitate for him a lawful one, Allaah Says (what means): {… And whosoever fears Allaah and keeps his duty to Him, He will make a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine.}[Quran 65:2-3]
In any case, it is forbidden for him to continue earning ill-gotten income unless he cannot find a lawful job and he is in necessity to continue doing it, in which case it becomes permissible for him to do it according to the necessity only even during the month of Ramadan. However, as soon as he finds a lawful job, he should refrain from earning ill-gotten money. It should be mentioned that there is much good and lawful earnings in Muslim countries. Therefore, we advise you to travel to another Muslim country to reside therein. A person will undoubtedly find lawful means of earnings if he endeavours and seeks the Help of Allaah. Little lawful earnings are better and more blessed than much ill-gotten earnings.
Allaah Knows best.