What is "as good as it gets"

phr. the best available under the circumstances

As Good as It Gets is a 1997 American romantic comedy film directed by James L. Brooks and produced by Laura Ziskin. It stars Jack Nicholson as a misanthropic, racist, obsessive-compulsive novelist, Helen Hunt as a single mother with a chronically ill son, and Greg Kinnear as a gay artist. The screenplay was written by Mark Andrus and James L. Brooks. The paintings were created for the film by New York artist Billy Sullivan, whose work is part of the modern art collection at NYC's Metropolitan Museum of Art and the New Orleans Museum of Art.

Nicholson and Hunt won the Academy Award for Best Actor and Best Actress, respectively, making As Good As It Gets the most-recent film to win both of the lead acting awards, and the first since 1991's The Silence of the Lambs. It is ranked 140th on Empire magazine's "The 500 Greatest Movies of All Time" list.