MADRID — El Mundo TV, the film/TV production arm of Spanish newspaper El Mundo, is prepping a docu spec on Madrid’s March 11 Al Qaeda outrage: “March 11: The Madrid Bombings.”

The simultaneous bomb attacks on four Madrid trains was the biggest terrorist action to date in Europe, leaving 192 dead. They also helped topple Jose Maria Aznar’s conservative government, which lost the general election three days later.

Made for the international market, the 52-minute docu spec combines dramatization and interviews to reconstruct the organization of the attacks, the placing of the bombs on the trains, the capture of some terrorists and the final mass-suicide of one terrorist cell in a bomb explosion in Madrid.

“March 11” will include little-known or unknown facts about the bombings, its producers promise.

The spec will be ready for delivery in mid-February. A two-hour version is being produced for Spain, where it will be broadcast on March 10 and 11.

Headed by general manager Melchor Miralles, El Mundo TV has won a reputation for hard-hitting, and sometimes hilarious, factual programming which stands apart from Spain’s frequently supine local media.

Delving into slimming clinics and glue-sniffing, its weekly late-night current affairs expose “7 Days, 7 Nights” racked up a 35% share on Dec. 29. El Mundo TV’s first venture into feature film production, ETA infiltrator thriller “Lobo,” was the third highest-grossing Spanish movie of 2004, racking up a hometurf E7.2 million ($9.8 million).

“Lobo” director Michael Courtois will helm the dramatized parts of “March 11.”