The tax inspector calculates 12.5% of $2700 at over $1000 when in reality it's $337.50.
In the first scene when Maggie is working on her airplane's engine, she asks Mitch to "crank it". Mitch pulls down on the right side of the prop (as he is facing it), turning it to the left if viewed from the cockpit. This is the wrong way. This engine is a right hand rotating engine, and you can tell so by looking at the angle of the propeller blades. Maggie and Mitch, as pilots and supposedly as at least one licensed mechanic (to be working on the airplane), would know this. Also, pulling the prop slowly through a 1/4 turn will not build up enough pressure to squirt oil anywhere, as it does here.