Cameron Crowe — writer of “Fast Times at Ridgemont High,” director of smart, rom-com classics such as “Say Anything . . . ” and a guy who more or less disappeared from the movie scene after his last film, “Elizabethtown” — is back with a new movie.

It stars Matt Damon and Scarlett Johansson, it’s called “We Bought a Zoo” and it’s about a widower (Damon) who does exactly what the title implies.

The just-released trailer suggests that it’s filled with classic Crowe touches — cute kids (think Jonathan Lipnicki in Crowe’s “Jerry Maguire,” but in girl form this time), guys quitting their jobs in spontaneous, extremely public fashion (again, see “Jerry Maguire”) and the notion that all of us just need to find what inspires us and focus on that. (To put that in Lloyd Dobler terms, to find our own “sport of the future.”)

It’s hard to tell whether the film, coming in December, will realize its potential based on a two-and-a-half minute clip. But here’s very much hoping.