Someone help me!

"Kyle Pratt (Jodie Foster) is an American aircraft engine engineer employed in Berlin, Germany. After her husband David (John Benjamin Hickey) flew off the roof of their building to his death, Kyle decides to bury him on Long Island, flying there with her six-year-old daughter Julia (Marlene Lawston) aboard a passenger aircraft which Kyle helped design. After falling asleep, Kyle wakes to find that Julia is missing. She begins to panic, and Captain Marcus Rich (Sean Bean) is forced to conduct a search. As none of the passengers remember seeing her daughter, Julia has no register in either the Berlin airport or the passenger manifest, and Kyle cannot find Julia's boarding pass, Marcus and the other crew members suspect that Kyle has become unhinged by her husband's death, and has imagined bringing her daughter aboard. One flight attendant Stephanie (Kate Beahan) is particularly unsympathetic. Faced with the crew's increasing skepticism regarding her daughter's existence, Kyle becomes increasingly desperate. Because of her increasingly erratic, panicked behavior, air marshal Gene Carson (Peter Sarsgaard) is ordered to guard and handcuff her.
Marcus receives a wire from the hospital in Berlin that says Julia was with her father when he fell off the roof and also died of internal injuries. Kyle furiously denies it. The crew believes she is delusional. A therapist (Greta Scacchi) on board tries to console her, causing Kyle to doubt her own sanity until she notices that a heart Julia had drawn earlier on the window next to her seat is real. Kyle is emboldened and convinces the therapist to let her use the bathroom. Instead of doing so, she climbs into the upper compartment and sabotages the aircraft's electronics, deploying the oxygen masks and interrupting lighting. She uses the chaos to take an elevator to the lower freight deck. She desperately searches for Julia and finally opens her husband's casket to which she emotionally breaks down. Carson finds her, puts her in handcuffs and escorts her back.
Kyle makes a final plea to Carson that she needs to search the plane upon landing. Carson considers for a moment, then "goes to speak to the captain." He sneaks back into the freight deck to remove two explosives and a detonator concealed in David's casket, then climbs down to the avionics section, revealing Julia who is sleeping (presumably drugged). He attaches the explosives to the side of the platform. At this point, it is revealed that Carson, Stephanie, and the mortuary director in Berlin (Christian Berkel) are part of a conspiracy. Carson tells the captain that Kyle is a hijacker and is threatening to blow up the aircraft unless the airline transfers $50 million into a bank account. The conspirators killed Kyle's husband and abducted Julia in order to frame Kyle. Carson tells an unnerved Stephanie that he intends to blow up the aircraft, killing the unconscious Julia, and leave Kyle dead with the detonator in her hand.
After making an emergency landing at Goose Bay Airport in Goose Bay, Labrador, Canada, the passengers exit the aircraft as the tarmac is surrounded by U.S. FBI agents. As the captain is leaving, Kyle runs to speak to him with Carson in tow. The captain demands she give up her charade having stated that $50 million demanded by her has been paid. This is the singular moment she realises how she has been manipulated. Thinking quickly, Kyle demands that Carson stay on board and the crew disembark. Carson hesitates and too realises that if he refuses then it would be seen that the charade would be his.
As soon as the plane's door closes, Kyle knocks Carson unconscious, handcuffs him to a rail, and takes the detonator from his pocket. Stephanie comes out of hiding. Carson regains consciousness and fires at Kyle with a concealed gun, sending her running. He chases after Kyle shooting, until she locks herself in the cockpit. She opens a hatch door to the upper level and throws out a binder to fool him. Carson hears the upstairs thud and leaves. Kyle exits and encounters a guilt-ridden Stephanie. Stephanie panics and flees the plane.
Kyle searches avionics and finds the unconscious Julia. Carson soon follows, and while searching, tells her how he gagged and dumped her daughter into the food bin. He disparages the people aboard who would never care enough to notice. Carson points his gun to where Julia lay before, but they're not there. He turns around and sees Kyle carrying Julia, with the detonator in hand. Carson shoots at her as she closes the door. She detonates the explosives, killing Carson. Everyone watches in shock and amazement as Kyle carries her daughter out onto the tarmac.
Later, Marcus apologizes to a seated Kyle holding Julia in her arms. Stephanie is led away by FBI agents. Kyle carries Julia still unconscious through the crowd of passengers. Before loading her daughter into a van to take them away, Julia wakes up and sleepily asks "Are we there yet?" as they get ready to leave."

Flightplan-Wikipedia
http://en.wikipedia.org/wiki/Flightplan

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