Chuck amp Buck is a 2000 American black comedy drama film directed by Miguel Arteta. It was written by and starring Mike White.
Too shy to announce his presence right away, Buck starts trying to see Charlie at his office at Trimorph Entertainment. Buck also surreptitiously follows Charlie to find out where he lives. While standing in front of the playhouse across the street from Charlies job, he strikes up a conversation with Beverly Lupe Ontiveros, the house manager. Buck hires Beverly to produce his play, and casts Sam Paul Weitz, a talentless actor who bears a strong resemblance to Charlie, in the lead. Buck then works up the nerve to approach Charlie and his girlfriend. After being invited to a party that Charlie and Carlyn host, Buck becomes aware of just how far apart he and Chuck have grown he feels rejected by Charlies new friends. He also becomes resentful of Carlyn, who he erroneously believes is interfering with their friendship. As a result of this mindset, Bucks behavior becomes increasingly erratic and obsessive.The end of the film deals with both Chuck and Buck confronting each other over their past. The two have sex, and Buck wants Charlie to stay afterward, but Charlie says they must part ways. Buck is distraught afterward, but eventually realizes he has found a new life at the playhouse. When discussing a play over dinner with Beverly, Buck notices Charlie has arrived with Carlyn. Charlie and Buck exchange glances across the room, but Buck ultimately disregards them and goes back to his conversation. Buck comes to the theater to find an invitation to the wedding. Buck arrives at the wedding party and offers the couple his blessing with his presence. Buck and Carlyn make peace as Buck effectively moves on from his obsession with Charlie and keeping their sexual encounter a secret from Carlyn. ........
Source: Wikipedia