[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/Cellular.jpeg]]

-> ''"Who are you? How did you get involved?"''
-> ''"I just answered my phone."''

2004 film starring Creator/JasonStatham, Creator/KimBasinger, William H. Macy and Creator/ChrisEvans.

High school biology teacher Jessica Martin (Basinger) is kidnapped by Ethan (Statham), who is after her family for unexplained reasons. He and his gang lock her in an attic where he smashes the landline phone to avoid her calling out. She manages to jury rig the phone to be able to dial out again-- but the rotary dial is destroyed, she can only tap out the numbers. Dialing blindly, she manages to connect with Ryan's (Evans) cellular phone. Ryan is an irresponsible commitment phobic trying to hook back up with an ex-girlfriend, he refuses to believe Jessica and thinks she's prank calling, but she pleads that if he hangs up she may not be able to reach anyone else at all. So he decides to [[GoodSamaritan believe her]] and take his phone to the police where they can decide if she's serious or not. Midway up the precinct's stairwell, he starts losing reception just as Ethan returns and starts hurting Jessica to find out where "it" is and where her husband is, and tells her he's going after her son. With no question of her and her son being in danger, Ryan undertakes a harrowing chase across the city to try to protect her son, discover why (and where) she's been kidnapped and avoid dying along the way.

All while avoiding losing cell signal and battery power.

Along the way, Sgt. Mooney starts unraveling the trail of chaos left in Ethan and Ryan's wake, while investigating Jessica's kidnapping. [[{{Retirony}} He's about to retire]], [[SortingAlgorithmOfMortality so...]]

There's a 2008 [[ForeignRemake Hong Kong]] {{remake}} called Connected, directed by Benny Chan. It, too, is worth checking out.

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!!This film provides examples of:

* ActionSurvivor: Ryan and Jessica. The former for managing to run, drive and dive across L.A. and live, the latter for [[spoiler: killing a man with ''Biology!'', choking another, and saving her family in the process.]]
* ApologeticAttacker: Twice. The first time Ryan apologized for holding up a Cell Phone store with a gun to steal a phone charger... though he ''did'' pay for it. Later mixed with ExplainingYourPowerToTheEnemy. [[spoiler:Jessica apologizes to a thug after killing him through a single cut below on his arm.]] See Chekhov's Skill below.
* BaldOfEvil: Ethan.
* [[ChekhovsSkill Chekhov's Skill]]: Jessica is a biology teacher, which means she [[spoiler: knows exactly which artery to cut to kill a man in less than a minute.]]
-->[[spoiler:'''Jessica:''' Tenth grade biology. Brachial artery... pumps 30 liters of blood a minute. There's only five in the human body. I'm sorry.]]
* ConfiscatedPhone: When his battery is abut to die, Ryan buys a cell phone charger at gunpoint in order to obtain instant service.
* CreativeClosingCredits: Edited into every cellphone screen that appeared in the movie.
* CreatorCameo: Producer Dean Deviln is a cab driver. Also a bigwig of New Line Cinema.
* [[spoiler: DirtyCop]]: [[spoiler: The people behind the kidnapping.]]
* DistressCall: Jessica's phone call.
* TheEveryman: Ryan is an ordinary kid who Jason Statham's villain coldly rebukes "Even the bitch has more fight than you" as he mercilessly administers him a NoHoldsBarredBeatdown.
* FemaleGaze: When we first see Ryan he doesn't have a shirt on and my, does he look fine without one.
* {{Foreshadowing}}: Early in the movie, Ryan tries to convince his ex-girlfriend he cares about her pet cause (Save The Bay). He sees an obscured sign and tells her he's there to "save the day".
* HeroicBystander Ryan is just a guy on the street who gets a phone call, but once he realizes it's not a prank he goes to extraordinary lengths to help Jessica.
--> Ethan: "Who are you? How did you get involved?"
--> Ryan: "I just answered my phone."
* HonorBeforeReason: Lampshaded by the fact that the Chinese character on Ryan's arm is read as "honor" and/or "loyalty", the defining traits of this otherwise ''completely'' ordinary boy.
* HypocriticalHumour: Ryan while driving yells for a girl to get off her cell phone and concentrate on the road. All the while he's talking to Jessica.
-->"Get off your cell phone! Concentrate on the road! IDIOT! *to Jessica* You still there?!"
* ImprobableAimingSkills[=/=]ImperialStormtrooperMarksmanshipAcademy: Officer Mooney ALWAYS gets the shot, the Bad Guys are lucky to graze his neck. Though it is a bit subverted as the Bad Guys are always firing on guys who have cover and/or are moving and Mooney fires several shots and usually only gets one, but he is waiting for the right shot instead firing blindly, so he has time to aim and plan.
* InsistentTerminology: "It's a day spa!"
* MinorCrimeRevealsMajorPlot
* OhCrap: The look on Ryan's face when the oil trucker slams into Ryan's stolen security car is ''priceless''.
** "Ohhhh, I am in ''deep'' shit!"
** The look on Ethan's face when [[spoiler:his cell phone goes off just as he's starting to aim at Mooney.]]
* OohMeAccentsSlipping: Jason Statham's native British accent fades in and out during his dialogue throughout the movie.
* PlayingAgainstType: Creator/JasonStatham as Ethan, the chief villain[[spoiler:actually the DragonInChief]].
* PrecisionFStrike: "It's a day spa, you fuck!"
* ProductPlacement: Well, the whole plot revolves around a cell phone, whose brand can be clearly seen in one or another scene.
* RecycledScript: Had ''Film/PhoneBooth'' not spent 40 years in DevelopmentHell (and two and a half years on the shelf after being completed), this film probably would have never happened.
* {{Retirony}}: It's Mooney's last day on the job, and he [[spoiler:lives through the end! SubvertedTrope, ahoy!]]
** Also [[spoiler:subverted in that despite his age he still knocks the stuffing out of one of the criminals.]]
* RippedFromTheHeadlines: Sort of. The film of course doesn't brand it self as being true, unlike [[Film/TheTexasChainSawMassacre1974 some]] [[Film/TheAmityvilleHorror other]] [[KingArthur movies]] but some ideas were inspired by the infamous [[http://en.wikipedia.org/wiki/Rampart_scandal Rampart Scandals]] done by the LAPD in the early 1990s.
* RunningGag: Everyone keeps on calling Mooney's post career business a beauty salon. The final time ends in the PrecisionFStrike mentioned above.
* SpiritualSuccessor: To ''Film/PhoneBooth'', also written by Creator/LarryCohen. That film's intentionally limited setting and claustrophobia was inverted by this film's wide-ranging action and motion.
* ShoutOut: The ''Film/LordOfTheRings'' backpack, a nod to the ''Lord of the Rings'' movies also released by New Line Cinema.
* ThisIsForEmphasisBitch: The thug that [[spoiler:Jessica kills]] manages to do nothing but choke up until his last moments when he looks up and chokes out, "... bitch".
* TitleDrop: The cellphone store Ryan "robs" is named Cellular.
* WhatHappenedToTheMouse: Almost an exact subversion. When Sgt. Mooney needs to create a diversion to [[spoiler:shoot Bayback from behind a sofa]], he knocks over and shatters a fish bowl with a goldfish inside. Minutes later, when his plan succeeds and the reinforcements arrive, he is seen holding the fish in a wine glass with a bit of water.
* WhoNamesTheirKidDude: Jessica's son is named Ricky Martin. She explains he's ''not'' named after the singer.
* WouldHurtAChild: The villains threaten more than once to kill Jessica's little son.