Diminished Capacity (2008)

A Chicago journalist (Broderick) suffering from memory loss takes leaves from his job and returns to his rural hometown, where he bonds with his Alzheimer's-impaired uncle Rollie (Alda) and his old flame (Madsen). Quickly a plan is hatched for the trio to head to a memorabilia convention in the city, where Rollie hopes to sell a rare baseball card that has gained the attention of local ne'er-do-wells intent on scheming the old man out of a potential fortune.