Continuity mistake: The bartender pours two beers that have no foam on the top. When the beers are set on the table they have about one inch of foam. When the camera angle changes there is no foam. (01:18:45)
Revealing mistake: It was pouring when Adam, Hannah, and Megan got out of their SUV to talk to the Man and try to get help with the flat tire. As they stood there, no "rain" was hitting them and it became obvious that their partially wet-looking clothes were "pre-wet" - they returned to the SUV with the same amount of "wetness." Also, the rain was coming down in straight streams, all parallel. (The water flow appeared to be slightly angled to make the artificial "rain" look more natural).
Other mistake: From the time Eliza exits the bar until she drives away, there are discrepancies in the scenery: there are or aren't parking spaces along the road; there's a lot of space between her truck and the truck in the next parking space, but not when she's backing out; the man rattling bottles by the garbage cans is further from the building and her truck when she's getting in and should be visible when she's backing out but isn't; her truck's rear end would be partially blocking the traffic lane, etc. (00:03:15)
Continuity mistake: The cards in Doc's [Morgan Freeman] full house overlap when Mary Sue says, "Doc wins. Full house beats a straight", but the two Queens closest to Doc are separated from the other cards when Doc says, "Mary Sue, cash those chips in for me." (00:20:02)
Continuity mistake: Mario was chewing a mouthful, then lifted his drink to wash down the food, but when the camera shifted, he was back to chewing a mouthful. (00:01:59)