Secondhand Lions (2003)

Fourteen-year-old Walter Caldwell is sent by his irresponsible mother, Mae, to stay with his bachelor great-uncles, Hub and Garth, while she leaves on another husband-hunting trip. Left with two reluctant and eccentric men, the introverted boy is drawn into a summer of comic misadventures as their exotic memories begin to awaken his spirit and bring new life to theirs.