Julia Garner and Lily Tomlin in Grandma.

Lily Tomlin moves right to the top of my 2015 Best Actress list thanks to her performance in Grandma, a film that should put her in strong contention for an Oscar nomination 40 years after she got a nom for her first movie role in Nashville.

As Elle Reidโ€”a grandma who will kick your boyfriend in the dick rather than offering him tea and cookiesโ€”Tomlin delivers a performance that runs the full gamut of emotions while being consistently funny. Every line delivery feels organic and natural, as if the role was created and written with her in mind.

Writer-director Paul Weitz, who worked with Tomlin a couple of years ago on Admission, did, in fact, write the role of Elle for Tomlin. Itโ€™s a role the legendary comedian richly deserves. Itโ€™s nothing short of a total blast watching Tomlin let loose in the sort of spotlight role that has evaded her for too many years. Grandma is her best role since playing Ben Stillerโ€™s druggie mom in Flirting With Disaster nearly 20 years ago.

Elleโ€™s granddaughter, Sage (Julia Garner), shows up at the door shortly after Elle has broken up with Olivia (Judy Greer), her younger girlfriend. Sage has an age-old problem: Sheโ€™s pregnant; sheโ€™s scheduled for an abortion in a few hours; and sheโ€™s flat broke. Elle, a well-known writer, would seem like a good candidate to have some cash on hand. Unfortunately, she has used all of her cash to pay off credit card debts, and she cut up those credit cards to make some nice wind chimes for the front porch.

The two jump in Elleโ€™s old 1955 Dodge Royal (a car actually owned by Tomlin) and set out to find some quick cash before Sageโ€™s appointment at the clinic. Their travels include a stop at a cafรฉ for bad coffee. (Thereโ€™s a good cameo by John Cho, aka the new Sulu.) They eventually wind up at Sageโ€™s boyfriendโ€™s house, where said boyfriend (Nat Wolff) gets a hockey stick to the nuts courtesy of Elle.

Elle and Sage meet a lot of people on the way to the clinic, and each encounter gives Tomlin a chance to blow up the screen. Thereโ€™s nothing stereotypical about this grandmother, a cantankerous woman with a good heart behind all of her sarcasm and staged coldness.

Coming out of nowhere with what might be his career-best performance is Sam Elliott as Karl, one of Elleโ€™s former lovers. Elle and Sage drop by his house in their quest for monetary assistance, and Karlโ€™s reaction to their visit goes from pleasant, to confusion, to utter disgust. Elliott only has one scene in the film, but itโ€™s so powerful that he could find himself in Oscar contention as well. Heโ€™s that good.

Oscar-winner Marcia Gay Harden arrives late in the film as Judy, Elleโ€™s daughter and Sageโ€™s mom, a career-driven woman who has a treadmill set up at her workstation. Harden puts another charge into a movie that is already high-octane; she finds the humanity in a woman who is a bit neglectful as a mom, but can perhaps come through in the clutch. Harden, like Tomlin, finds some stinging laughs in Weitzโ€™s script; itโ€™s her best work in many years.

The late Elizabeth Peรฑa, in one of her last performances, makes a memorable appearance as a former friend of Elle who lowballs her on some first-edition books she attempts to pawn. The film eventually wraps after a series of character resolutions that are completely satisfying and devoid of schmaltz.

Itโ€™ll be a shocker if Tomlin doesnโ€™t attend the Oscars with a shot at gold next year. Elle is the kind of role that wins awardsโ€”or at least earns you a seat next to Brangelina for the show. Tomlinโ€”who received an Emmy nomination for Grace and Frankie, a Netflix series co-starring 9 to 5 partner-in-crime Jane Fondaโ€”is back in top form.

Grandma is now playing at the Ultrastar Mary Pickford Stadium 14 (36850 Pickfair St., Cathedral City; 760-328-7100); the Regal Rancho Mirage Stadium 16 (72777 Dinah Shore Drive, Rancho Mirage; 844-462-7342); and the Cinรฉmas Palme dโ€™Or (72840 Highway 111, Palm Desert; 760-779-0430).