Factual error: In the third chapter of the movie, as the Union soldiers run into the Crater, they are flying the fifty-star American flag which is not the correct flag for the time period. The flag, if it is counting all states, even Confederate states at that time, should have 35 stars. A star for West Virginia, which seceded from Virginia during the American Civil War, was added to the flag in 1863.
Maddy: See, I think there's a plan. There's a design for each and every one of us. You look at nature. Bird flies somewhere, picks up a seed, shits the seed out, plant grows. Bird's got a job, shit's got a job, seed's got a job. And you've got a job.