Today, Apple Original Films unveiled the trailer for Guy Ritchie’s upcoming action-adventure “Fountain of Youth,” starring John Krasinski, Natalie Portman, Eiza González, Domhnall Gleeson, Arian Moayed, Laz Alonso, Carmen Ejogo and Stanley Tucci. “Fountain of Youth” follows two estranged siblings (John Krasinski and Academy Award winner Natalie Portman) who partner…