The Nine Lives of Fritz the Cat (1974)

Voices/Cast:

• Skip Hinnant ... Fritz (voice)
• Reva Rose ... Fritz' Old Lady (voice)
• Bob Holt ... Many voices (voice)
• Robert Ridgely... (voice)
• Fred Smoot... (voice)
• 'Sweet' Dick Whittington... (voice)
• Luke Walker... (voice)
• Peter Leeds... Juan / Various Characters (voice)
• Louisa Moritz... Chita (Juan's Sister) (voice)

IMDb.com:
Fritz the Cat may have lost one of his lives in the comics, but in his new movie, he has eight more lives left to go! While his wife screams at him, Fritz lights up a joint and reminiscences about what could have been. Fritz, now married and with a son, is desperate to escape from the domestic hell he now finds himself in. Lighting up a joint, he begins to dream about his eight other lives, hoping to find one that will provide a pleasant distraction. The drug-induced journeys he takes include spells as an astronaut, Hitler's psychiatrist, a courier travelling in hostile territory during a race war, and as a pupil of an Indian guru living in the sewers of New York.

Link to soundtrack rewiew:
Tom Scott & The L.A. Express - T.C.B. in E (Main Title Theme From Nine Lives Of Fritz The Cat) / Jump Back (Vocal By Merry Clayton)