Success has many fathers, but in the case of Ezra (William A. Fitzgerald), none of them are Max (Bobby Cannavale), his hotheaded divorced dad.

A sentimental drama, “Ezra” opens as its titular character, an 11-year-old boy with autism, is expelled from school for disrupting class. Soon after, a pediatrician suggests that Ezra enroll in special education and start taking medication.

At this point, concerned parents might consult a second opinion. But Max, a struggling comedian living in New York City with his surly father (Robert De Niro) after his divorce from Jenna (Rose Byrne), makes a more impulsive bid for control: He climbs Jenna’s fire escape, seizes Ezra from bed and brings him on a road trip.

As the pair make their way cross-country, the movie gracefully shows how Ezra is the one who ends up steadying Max. Although he exhibits rigid behaviors, Ezra is confident and easygoing, while Max’s aggression, as embodied by the skilled Cannavale, is tinged with pained desperation.

Written by Tony Spiridakis and directed by Tony Goldwyn, “Ezra” is standard Hollywood fare. Its mood is often playful, until there’s a hard tug at the heartstrings. Family members reconcile, while tough guys learn life lessons about being generous with their children, and their own inner children. What keeps the story sweet is the chemistry between Cannavale and Fitzgerald, who build a bond worth cherishing.

Ezra
Rated R for family drama. Running time: 1 hour 40 minutes. In theaters.