On paper, Apple TV+’s Fountain of Youth seems like a fun idea: a mix of National Treasure and The Mummy with a bickering John Krasinski and Natalie Portman as brother-and-sister tomb raiders. That right there — the sibling connection instead of typical on-again/off-again partners in romance — is proof that at some point during this film’s gestation,

"Fountain of Youth" - the latest swashbuckling adventure following a search for a mythical location - has finally dropped. The Guy Ritchie-directed film stars John Krasinski and Natalie Portman as two estranged siblings who get roped into hunting for the titular Fountain of Youth while others aim at keeping the location a secret.