Secondhand Lions (2003)
This comedic and touching family film follows the adventures of a shy young boy (Haley Joel Osment) who is sent to spend the summer with his eccentric uncles (Michael Caine, Robert Duvall). At first shocked by his uncles' unconventional behavior that includes ordering African lions through the mail, the boy soon becomes enthralled with unraveling the mystery that has followed the uncles for years. Hearing tales of their exotic adventures involving kidnapped princesses, Arabian sheiks and lost treasure, not only brings him closer to his uncles but also teaches him what it means to believe in something... whether it's true or not.