Okay, so I hope you guys had fun shooting. Now sometimes it is possible that you may have had too much fun that you missed out some shots. Come on, admit it, it happens. Well, in that case, what you need to do is basically plan a separate day or days to pick up a cover what else you might have missed or needed in the Edit. If you have already started editing. Now, your production schedule should have already scheduled this in as a backup.
And you would probably also need to do a new set of call sheets for each pickup day that you would need. In my case, we actually managed to shoot everything in less time than we anticipated ending earlier on a few days. So we didn't need a pick up day. But in case you do have a need of it, know that your crew size will be smaller and sometimes you don't even have to be dare. If you have a supervisor or a department head you trust working on set to collect those pickups for you. Also be Where that actors in occasions may not be as available now, so you would probably need to find a way to work that into the contract earlier or find some other alternatives.
Usually in my contracts, I've included backup dates just in case and that is what you should do as well as a good filmmaker and producer.