i mean, this coffee shop, this downtown of kyiv. reporter: there are those who fled in the first days of the war like mark wilkin and his wife olga, after a few days settled in berlin, they say something didn t feel right. so they drove right back to ukraine. what was that like? what was your frame of mind that day? it felt good. we felt determined, certain. and happy to be back, finally, to be able to make ourselves useful. reporter: the british/swiss filmmaker is now using this skill to create resistance fighters overnight all to raise funds for the war effort. i m not a soldier. i don t know how to handle say gun. but i m a filmmaker, i m a communicata