The Odd Couple: Joaquin Phoenix puffs on cigarette as heavily pregnant Maya Rudolph dons skimpy scrubs on set of their new film

While Joaquin Phoenix is known best for his roles in films that take place in another era, Maya Rudolph is lauded for her modern-day comedies.



But the two actors came together for the 1960s-based set for their latest film, Inherent Vice, on Monday.



Joaquin, 38, arrived to the Los Angeles set in full character.



Ready to roll: Joaquin Phoenix was in full costume on the Los Angeles set of Inherent Vice on Monday

Working mother: A very pregnant Maya Rudolph was also on set for the film, which is directed by her longtime partner Paul Thomas Anderson, with whom she already has three children

Scruffy, long sideburns in the form of 'mutton chops' lined his jaw as his long, curly hair billowed out behind his head.



The Walk the Line star topped his 'do with a straw panama hat and covered his eyes with sunglasses.



A button-down shirt layered under an olive-coloured army-style jacket, and faded denim trousers finished the look.



He walked around set barefoot while he puffed at a cigarette, and u nder his arm, he safely tucked a pair of tan leather cowboy boots.



From page to screen: In the 1960s-era film, which is based on Thomas Pynchon's novel, Joaquin plays Doc Sportello

Blooming belly! Maya's growing baby bump was evident as the wind blew her dress against her

Also on set in character was a very pregnant Maya, 40.



The Bridesmaids actress donned a green scrubs dress and white stockings that reached just above her knees.



Maya loafed around set in a pair of comfortable slippers, easing the pressure of her growing belly.



She is expecting her fourth child with director of the film and longtime partner Paul Thomas Anderson.



The pair are also parents to Pearl, seven, Lucille, three, and Jack, 21 months.



Costume confidential: The Bridesmaids star appears to be playing some sort of nurse in the film, as her costume indicated

Inherent Vice is based on the Thomas Pynchon novel about Doc Sportello, Joaquin's character.



According to Amazon, 'it's the tail end of the psychedelic sixties in L.A.' and Doc's ex-girlfriend re-enters the picture with a plot to kidnap a billionaire land developer.



Also set to star in the film are Sean Penn, Josh Brolin, Reese Witherspoon, Owen Wilson and Benicio Del Toro.

Their fourth is on the way! Maya, here pictured in September of 2012, and Paul Thomas Anderson are also parents to Pearl, 7, Lucille, 3, and Jack, 21 months



