Roger Ebert gave the film three-and-a-half stars out of four and praised it for allowing " all the financial wheeling and dealing to seem complicated and convincing, and yet always have it make sense.

Roger Ebert gave the film three and a half stars out of four, writing: " Pi is a thriller.

Roger Ebert gave the film three-and-a-half stars out of four and wrote " Bigelow is an interesting director for this material.

Roger Ebert gave the film three and a half stars out of four, writing: " Most thrillers these days are about stunts and action.

Roger Ebert gave the film three and a half stars out of four and wrote, " This movie takes a lot of delight in being more psychologically complex than it has to be.

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