[DaSol Debbie Lim] “I know you have to use dynamic angles and fast, tight cuts”
tbh, that sounds very “film making by numbers” – what you have to do is decide how you’re going to portray the action and film the shots you are going to need to do so.
IMO, you needn’t be strict about crossing/ not crossing the line as long as you have the shots to cut yourself around, effectively carrying the audience to another pov. Think about the way your shots will cut together. Don’t “just move the camera around” across the line, but don’t be inhibited from moving across by the “rule” that one should stay on one side. Try to remember that all rules are really only guidelines, very useful but not inviolable.
I’ve never really liked the term “180 degree rule” and would encourage a more sophisticated understanding of lines of action. As soon as you have more than 2 characters you have multiple lines of action and the relative dominance of those lines changes as events develop, for example, if you have a shot which is looking over character A’s right shoulder, cutting to a shot looking over A’s left shoulder can work at one moment but be wrong at another moment.
There’s an old maxim “if your shots aren’t good enough, you’re not close enough”. Take the camera to the action, don’t try to bring the action to the camera.