Problems during filming

During filming I have had problems with my actors not being available because of work and other things. Therefore I have had to get large chunks of filming done when I do get the chance. Another problem I have encountered is the light. The natural light time has decreased significantly and because most of the time I am in school the natural light I want to use in my film I haven't been able to. So this is a big factor in my film and now the light is limited in the film and it limits me to what time I can do my filming. Finally during my filming certain actors have been very ill so this has also limited me. I have tried the best to produce a trailer up to standard even with all of these problems.