Continuity mistake: When Louis Simo is unconscious on the floor, his girlfriend enters and the keys next to his head change position in the next shot. (01:16:20 - 01:17:05)
Continuity mistake: When Luis is standing in front of the pool table talking to Eddie and his men, there are three pool cues on the table, one on the left and two on the right; when Eddie's men push Luis back on the table, the two on the right turn into one. (Don't get it confused with the one Thay picks up that was the one on the left.)
Answer: Here is a good link that will help separate fact from fiction. http://www.crimelibrary.com/notorious_murders/celebrity/george_reeves/1_index.html.