Some facts:
Hugo Lloris is aiming to be the first player in history to win the World Cup twice as captain. Some players have won one as captain and another when not captain such as Daniel Passarella and Cafu, but nobody's been capt for two wins
Kylian Mbappe and Antoine Griezmann both have an opportunity to join the group of four players (Vava, Pele, Breitner, Zidane) who have scored in more than one final, and if either score and are on the winning side they join Vava and Pele as the only players to score in and win two finals. Mbappe is aiming to be the youngest player to score in two finals (beating Vava's record by four years).
Again with those two, if either score they will join Vava as the only players to score in successive finals, and if either score twice they will draw level with Vava, Zidane and Hurst on three final goals. If either get hat tricks they will join Hurst as the only players to get three in a final AND go in front for most ever goals in WC finals.
Messi and Di Maria are hoping not to join the list of players whose team lost two finals - realistically neither will have another chance.
Both teams are going for their third win - but unlike Brazil after their third victory in 1970, they don't get to keep the trophy.