The lives of a group of Hollywood neurotics intersect over the Christmas holidays. Foremost among them, a songwriter visits Los Angeles to work on a singer's album. The gig, unbeknownst to him, is being bankrolled by his estranged father, a dairy magnate, who hopes to reunite with his son. When the songwriter meets an eccentric housewife who fancies herself a modern-day Garbo, his world of illusions comes crashing down.
Unfortunately the movie Welcome to L.A. is not yet available on HBO Max.
| Directing | Alan Rudolph | Director |
| Sound | Chris McLaughlin | Sound |
| Sound | Dan Wallin | Scoring Mixer |
| Directing | Tony Bishop | Second Assistant Director |
| Camera | Harry Rez | Key Grip |
| Art | J. Allen Highfill | Other |
| Costume & Make-Up | Monty Westmore | Makeup Artist |
| Sound | James E. Webb | Sound |
| Costume & Make-Up | Jules Melillo | Costume Supervisor |
| Sound | Richard Oswald | Sound Effects Editor |
| Editing | Mark Eggenweiler | Assistant Editor |
| Art | Dennis J. Parrish | Property Master |
| Costume & Make-Up | Mary Elizabeth Still | Costume Assistant |
| Camera | Randall Robinson | First Assistant Camera |
| Camera | John Bailey | Camera Operator |
| Sound | Michael Galloway | Sound Recordist |
| Sound | Richard Portman | Sound Re-Recording Mixer |
| Camera | Jan Kiesser | First Assistant Camera |
| Camera | Tony Rivetti Sr. | Assistant Camera |
| Directing | Tommy Thompson | Assistant Director |
| Production | Tommy Thompson | Executive In Charge Of Production |
| Writing | Alan Rudolph | Writer |
| Camera | David Myers | Director of Photography |
| Production | Scott Bushnell | Associate Producer |
| Sound | Richard Baskin | Original Music Composer |
| Production | Robert Altman | Producer |
| Production | Robert Eggenweiler | Associate Producer |
| Editing | William A. Sawyer | Editor |
| Editing | Tom Walls | Editor |
| Art | Dennis J. Parrish | Set Decoration |
| Art | Dan Perri | Title Designer |
