In the island chess game, Sutton's first move is F4, but after David's move, the board shows Sutton's first move as E4.
When the Hulk is carrying the hunter's body out of the lake, a lot of the green makeup has washed off of his feet.
Not only can you tell it's not Bill Bixby crossing the dam but his stunt double but also after he crosses the dam you can see David Banner running away his jeans are dry as he climbs the rope ladder.
When the Hulk comes out of the lake carrying the hunter his chest is wet but his pants are dry.