LOS ANGELES: Speed Racer, Warner Bros big budget family adventure from directors Andy and Larry Wachowski (The Matrix trilogy), crashed and burned at North American box offices this past weekend, according to final figures released.

While initial estimates gave the film, which cost 150 million dollars to make according to some media reports, a disappointing second-place finish with 20.2 million dollars in ticket sales -- barely beating out Fox's poorly reviewed What Happens In Vegas, -- revised figures have now down-shifted that total to 18.6 million dollars and a weak third place finish.

The revised figure put Vegas, which turned in a final figure of 20.7 million dollars, at second place behind Iron Man.

Going into the weekend, Speed Racer had been Warner's best hope of giving the current box office champ a run for its money.

But Iron Man trounced its competition, scoring a weekend box office of more than 50 million dollars and pushing its roughly two-week total to 177 million dollars.