“Grandma” marked the great Lily Tomlin’s first leading role in a motion picture in 27 years, the last being 1988’s “Big Business” in which she starred opposite Bette Midler. Here she plays Ellie Reid, a misanthropic poet who is still mourning the death of her longtime partner. As the movie begins, Ellie coldly breaks up with her girlfriend (played by Judy Greer) and is met by her granddaughter Sage (Julia Garner) who desperately needs $600 dollars by sundown for an abortion. This leads Ellie and Sage to go on a road trip to get the money, and they find themselves uncovering dark secrets from the past which must be reckoned with.

“Grandma’s” press conference was held back in 2015 at the London Hotel in West Hollywood, California, and it was attended by Tomlin, the movie’s writer and director Paul Weitz, and co-star Sam Elliott.

Weitz’s previous films include “American Pie” which he co-directed with his brother Chris, “About a Boy” which featured one of Hugh Grant’s best performances, and “Being Flynn” which starred Robert De Niro and Paul Dano. Weitz previously worked with Tomlin on the movie “Admission,” and this led him to write the part of Ellie Reid with her in mind.

When it comes to writing a screenplay, one has to wonder how somebody does that. Does the writer treat it like a journey where they don’t know how it will end, or do they have the beginning, middle and end in mind when they start writing? I asked Weitz about this, and he gave us some insight on his writing process and of what story is really all about for him.

Paul Weitz: In terms of the script, I do think it’s a good sign for me when I kind of know what the ending is. It’s very clear that Sage ends up learning so much from Lily’s character in the movie like learning how to stand up for herself and learning not to shy away from the fight. It’s not clear to me what Lily’s character has gained from this until the end when this sort of fierce love that she has had for her dead partner, she’s able to let go of that guilt because of the protectiveness and kindness to her granddaughter. The most emotional thing in the movie to me is not the moment where Lily is crying. It’s actually a moment where she’s laughing and she’s thinking about some old joke that her partner said which made her laugh. It’s a really private moment and I really like that, and I like that it’s about letting go of stuff and moving on to something with a lot of up to miss him despite all the crap she’s been through.

Elliott plays Karl, one of Ellie’s former lovers who is quite perturbed by her sudden reappearance in his life. The actor is of course known for his deep and resonant voice which has served him well in one movie after another whether it’s “The Big Lebowski” or “Thank You for Smoking.” This led to my question of how he manages to keep his voice so deep and bold after so many years.

Sam Elliott: Uh, I don’t know. It actually gets deeper as time goes on if that makes sense. I’ve been blessed with it I guess. I sang very early on. My mom used to drag me to sing in a choir when I was a kid, and I was always involved with these acapella choruses and different things always through school. Its good fortune as it turns out. It’s not a matter of management, it’s just gravity.

“Grandma” is a terrific comedy drama filled with strong dialogue and terrific performances, and it is worth checking out. It is now available to own and rent on DVD, Blu-ray and Digital.