From Wichita to Dodge City, to the O.K. Corral in Tombstone, Wyatt Earp is taught that nothing matters more than family and the law. Joined by his brothers and Doc Holliday, Earp wages war on the dreaded Clanton and McLaury gangs.
Tombstone was a different beast, and that sort of overshadows this, given that one tries to be more accurate and the other goes for entertainment.
Take Wyatt Earp as a biopic and it is a superb and fair film. Compare it to Tombstone which was more of a Western and it's lacking the flair.
However, it ends abruptly, and it is miscast. Cosner (and i am a fan) doesn't really make a good Earp. Dennis Quaid who I am also a fan of, doesn't make a good Doc. This was 1994, in the 80s I might have a different opinion, but they both looked a bit old for their characters and the time.
However, I did like the parts of the Earp story that they added, I did lament the absence of Luke Short (who needs his own movie), and I liked how the story unfolded.
For a biopic, it is an epic. It just got compared to a western.