Plot hole: Kane and Irons abandon their horses to hook a ride on the train, leaving behind their rifles. When they get to Hadleyville, Kane has somehow reacquired his Sharps.
Factual error: The film takes place in Kansas, reprising the original "High Noon", yet during the chase, both the pursuers and pursued wend their way through Saguaro cacti, only found in Arizona.
Factual error: Hadleyville is supposedly located in Kansas, yet Irons tells his accomplice that Mexico is just 3 hours South.