If you are a First time director or producer and here a crew member say: don’t worry, we can fix it in post! WORRY!
Absolutely worry and do whatever you can to handle everything you can while on set.
Handling issues in post is expensive and does not always work out.
If you want distribution for your film you have to pass QC, one way to make sure that you do before you go into post production, make sure you record, shoot EVERYTHING you planned to while on Especially sound. Have multiple takes of important scenes.
I know as an indie filmmaker we are literally running against the clock with limited funds, but one way to get around this is to make sure to:
note your most important scenes, meaning, scenes the film cannot do without and make sure, that no matter what: you get the audio, room tone, and you have multiple takes, even if you think you’ve captured what you need, ALWAYS ALWAYS do one more take for safety.
I know that’s often not possible on every scene, so make sure to create a list, make sure your first AD knows which scenes are crucial. Because no matter what happens, there always seems to be some issue in the shot that everyone missed.
Happens ALL THE TIME. Do one more take for safety on those crucial scenes.
If you have a tired crew member say, “you can fix it in post”, remember, you are the one that has to live with these mistakes. Not your gaffer, not your sound guy, so get it while on set. Do whatever you have to do because I promise you, you don’t want to have to reshoot or pay a lab expensive fees to fix it later.