In attempting to examine A Sunday on La Grande Jatte, the famed pointillist painting by Georges Seurat, one should avoid fixating too closely on any one spot lest the image dissolve into disconnected dots. Only by stepping back to take in the entire scope does the intricately rendered scene reveal itself. So it is with Sunday in the Park with George, the fanciful musical by composer Stephen Sondheim and playwright James Lapine. Split into two acts, the work initially focuses on a fictionalized version of the celebrated Seurat as he attempts to discern a deeper meaning within everyday life, even as his own artistic obsession alienates him from his lover, Dot. The second act leaps ahead to the 1980s, where the great-grandson of George and Dot has debuted his own creation: a light installation inspired by his grandfather’s work. Overseen by Guthrie artistic director Joe Haj, this production bridges two generations through the unifying pursuit of artistic expression. Randy Harrison, popularly known for his work on the Showtime drama Queer as Folk, portrays George, while Broadway veteran Erin Mackey steps into the role of Dot.