Here's all you need to know about "Our Family Wedding": It thinks that feeding a goat an entire bottle of Viagra is the height of hilarity.

New Yorkers Lucia and Marcus ("Ugly Betty's" America Ferrera, Lance Gross) return to their native L.A.to announce their engagement. Slight problem: She's Mexican-American, he's African-American.

And their fathers - Miguel and Brad (Carlos Mencia, Forest Whitaker) - hate each other at first sight.

Ferrera and Gross are an attractive couple, but they're pushed to the background while we concentrate on the rivalry of the dads, who stake out their territories like posturing schoolboys, then bond over a drunken night at a disco.

There are stupor-inducing subplots. Miguel needs to reignite his passion for his wife (Diana-Maria Riva). Meanwhile the divorced Brad must wean himself of young women and find true love with his best friend, Angela (Regina King, offering a dusting of class the film desperately needs).

The Oscar-winning Whitaker is utterly wasted here, while Mencia appears at a loss to give his character any sort of interesting edge. An uncredited Taye Diggs briefly lights things up as a henpecked boyhood friend of Marcus, but then he vanishes.

In hands more creative than those of director Rick Famuyiwa and screenwriters Wayne Conley and Malcolm Spellman, "Wedding" might have been the occasion for some insightful observations on the distrust, antagonisms and competition between ethnic minorities in millennial America.

But that would have been a different movie - a good one.

OUR FAMILY WEDDING

1 1/2 stars

Director: Rick Famuyiwa

Cast: Forest Whitaker, America Ferrera, Lance Gross

Rated: PG-13 for some sexual content and brief strong language

Running time: 1:41