Weak Debute for "Tron:Legacy" and "How Do You Know"

 (Reuters) - "Tron: Legacy," a costly 3D sci-fi movie that Walt Disney Co has promoted for more than three years, took the top spot at the North American box office, but with a disappointing weekend haul of $43.6 million, according to estimates issued by the company on Sunday.
The other big new release, "How Do You Know," a comedy featuring a high-priced lineup headed by Jack Nicholson and Reese Witherspoon, was a major flop. It earned $7.6 million, falling short of modest expectations. The ranking was not immediately available. The film was released by Columbia Pictures, a unit of Sony Corp.

'How Do You Know' Price Tag: $120 Million

THR has learned that the film, which centers on a love triangle, cost $120 million to make, though the studio drove that down to about $100 million thanks to tax rebates from Pennsylvania and D.C. One reason for the price tag is old-fashioned salaries for the pic’s talent: Reese Witherspoon ($15 million), Jack Nicholson ($12 million), Owen Wilson ($10 million) and Paul Rudd ($3 million) received their quotes, and Brooks will earn about $10 million plus backend for writing, producing and directing. That’s about $50 million for the major talent alone.