Like people at a class reunion everyone actually wants to attend, the cast and crew members Spike Lee interviews on the half-hour ''20 Years Later'' feature included in the Do the Right Thing 20th Anniversary Edition Blu-ray (Universal, $30; DVD, $20) seem really proud of the film and happy to reminisce about their work.

Released in the summer of 1989 and depicting a 24-hour stretch on a sweltering block of Brooklyn's Bedford-Stuyvesant neighborhood, the movie remains Lee's best and most eloquent work on the subject of race relations in the United States, which have changed a lot in the ensuing years.

But the film is also fantastic entertainment, populated by memorable characters, strikingly shot by cinematographer Ernest Dickerson and imbued with the energy and excitement that come from everyone being on top of their game and clicking together.

On the featurette, Dickerson talks about how he and Lee constantly struggled to keep the audience mindful of how integral the hot weather was to the story through the use of color (though sharp and vivid, the Blu-ray transfer tones down the intensity of Dickerson's orange palette). He also pinpoints a couple of shots in which you can spot the otherwise hidden rainy weather that plagued the production.

Rosie Perez, who made her acting debut in the movie, joshes with Lee about their initial encounter at a nightclub in Los Angeles the night before she was scheduled to leave for New York, and how she got angry with him because he laughed at everything she said.

John Turturro, who played the racist son of pizzeria owner Danny Aiello, says that at one point during the shoot, a woman from craft services walked over to him and said, ''I hate you so much,'' which made him worry about the effect the film might have on his personal life. He also reveals they only had two prop pizzas. (Watch how, during the scene in which he seems to be slicing a pie, he never actually cuts into it, because they needed to keep the pizza intact for another day.)

Public Enemy's Chuck D, who came up with the film's immortal anthem Fight the Power, talks about the pressure he felt when Lee assigned him to compose a song that would serve as an ''answer'' to everything that was going on in New York City at the time, from David Dinkins to Howard Beach.

In new commentary on the disc, Lee offers further reminiscences. The rest of the extras, which are substantial, have been ported over from the excellent two-disc 2001 Criterion Collection edition, including a press conference from Do the Right Thing's premiere at the Cannes Film Festival in which several journalists dwell on Lee's use of diametrically opposed quotes from Martin Luther King Jr. and Malcolm X to close the film. Even now, the way in which you interpret the use of those quotes reveals a lot about your attitude toward race.

`TWO LOVERS'

Although his performance in this romantic drama (Magnolia Home Entertainment, $30 DVD, $35 Blu-ray) was eclipsed by his bizarre behavior during a promotional visit to the David Letterman show, Joaquin Phoenix does some of his best work here as an emotionally damaged young man who juggles affairs with two women (Gwyneth Paltrow and Vinessa Shaw).

On a commentary track, director James Gray touches on Phoenix's baffling antics, which include the pursuit of a career in hip-hop: ``Whether or not he's serious, I have no clue -- Joaquin is his own man.''

Gray's entertaining talk also delves into the film's depiction of bipolar disorder, the way he managed to cast Paltrow (who has cut back on roles since becoming a mother), and the reason why there are so many romantic comedies and relatively few romantic dramas: ``It's very difficult to make a film about love with a degree of serious intent, because the state of being in love is so inherently preposterous that we do and say moronic things, no matter how old we are.''