Other mistake: Jack Twist's Thanksgiving dinner has a TV clip from a 1977 American Football game which cuts to Ennis Del Mar's Thanksgiving dinner which has an ice skating competition from 1980 playing on the TV, but then later the charity dinner where Jack Twist meets his soon-to-be lover has a banner saying 1978, two years before the previous Thanksgiving scene with Ennis Del Mar.
Other mistake: In the ending before McGivens gets ready to slit Zorro's throat, Zorro kicks McGivens 4 times. After McGivens goes forward on his face, the rope that held Zorro's hands tied is gone, nor are there pieces left behind from him cutting them.
Other mistake: Captain Stanley takes the lid off a small bottle on his right and puts the lid on the desk. He pours a drink and the lid miraculously appears in his left hand. He then screws it on the bottle. Screw top bottles weren't around till 1920. (00:54:50)