I don't want to make another film for a long time.请问为什么要用介词for?在很久以前不应该用in吗?

I don't want to make another film for a long time.请问为什么要用介词for?在很久以前不应该用in吗?
I don't want to make another film for a long time.请问为什么要用介词for?在很久以前不应该用in吗?

I don't want to make another film for a long time.请问为什么要用介词for?在很久以前不应该用in吗?
可以这样理解,for用于一个时间段,in用于一个时间点.

make for