Calamity Jane was born in 1852. Wild Bill died in 1876, making her 24. She bore him a child. This actress doesn't look a day over 16 with perfect teeth and a shiny plastic gun holster.
Faith walks around for days in spaghetti straps without so much as a sunburn.
During one scene a white pricetag is visible on Jane's red bandana.
The show credits a makeup artist, but the only makeup was false eyelashes and rotten teeth.
When seeking actors in a supposedly period western, look for someone who can pronounce 'vittles' correctly without saying VICK-SHOO-ALLS.
Faith wants to bury her husband but she is not wearing any wedding ring.
Some of the men have belt loops on their pants. Belt loops weren't invented until 1922.
The sparkly black flat shoes seen on the captive woman at the 20 min mark were sold at Payless Shoes circa 1997.
The red painted fence gate with pressure treated fenceposts seen at the 69 min mark are way too modern for 1876.