La La Land

La La Land follows Sebastian 'Seb' Wilder, a passionate jazz pianist, and Mia Dolan, an aspiring actress working as a barista on the Warner Bros. lot between auditions, as they pursue their dreams in Los Angeles. Their first encounter is antagonistic—Seb honks at Mia in gridlocked freeway traffic. Later, Mia witnesses Seb being fired from a restaurant gig after he defiantly improvises jazz instead of playing the required Christmas repertoire. The two cross paths again months later at a Hollywood party where Seb is grudgingly playing in a pop cover band. Despite initial friction, a mutual attraction develops. Seb takes Mia on a tour of his favorite jazz haunts, sharing his dream of opening his own traditional jazz club. They share a moonlit dance on the observation deck of Griffith Observatory, and their romance deepens as they bond over their artistic ideals—Mia's love of cinema and old-Hollywood glamour, Seb's devotion to authentic jazz. Encouraged by Seb, Mia writes and performs a one-woman theatrical show. Meanwhile, financial pressure leads Seb to accept a well-paying gig as keyboardist in a commercially successful jazz-pop band led by an old friend. Mia recognizes the compromise as a betrayal of his artistic values, and the relationship begins to strain under competing career demands and differing priorities. Tension peaks when Seb fails to attend Mia's one-woman show—poorly attended and humiliating—because he forgot a scheduled band photoshoot. Devastated, Mia abandons her Hollywood ambitions and retreats to her family home in Boulder City, Nevada. Seb later learns that a prominent casting director was at Mia's show and wants her for a major film role. He drives to Boulder City to persuade her to come back for the audition. She agrees, and at the callback she delivers an emotional monologue about her aunt—a free-spirited woman who leapt into the Seine in Paris out of pure joy—that reads as a breakthrough performance. The film then jumps forward five years. Mia is now a celebrated actress, married to another man, with a young daughter. One evening, while out with her husband in Los Angeles, she wanders into a jazz club whose logo she recognizes as one she once sketched for Seb. The club, called Seb's, is the realization of everything he dreamed of. When Seb spots her in the crowd, he begins to play their shared love theme. The film dissolves into an extended fantasy sequence in which they imagine an alternate life together—one where they stayed together and both achieved their dreams. The vision ends, and they exchange a quiet, bittersweet smile across the room before Mia leaves with her husband. Their love story is over, but both have become who they wanted to be.

Sources: Wikipedia