Cellular is a movie where Chris Evans' "character" attempts (and fails many times) to rescue whatever Kim Basinger is suppose to be. A victim? Technologically knowledgeable? Unable to do kung-fu? I don't know, but I don't think she can do much against her captors anyway, which include lead robber, Jason Statham....'s character. And knowing what he can do...yeah, she's hopeless.
Evans receives a call from Basinger - it gets better - who is held captive by Statham, and won't let her loose until his demands(?) are met. Evans takes it as a prank, per typical teenager, but twenty minutes later, gives her a shot, per egging from his non-important friend. From there, it spirals into many S-bomb drops & mediocre acting, to scenes of the robbers for little to no reason except to remind you "Oh hi. We're still robbing...sorta."