Another Friday, another surprisingly competitive box office race. According to estimates, three films were within one million dollars of claiming first place; though that is expected to change as the long holiday weekend progresses. In first place yesterday with $7.4 million was Sony/Screen Gems’ The Vow.  Even considering the film’s victory last weekend and its impressive seven day cume, analysts expected The Vow to fall to third in its sophomore frame.  Instead, the romantic-drama is making a play for another weekend on top, with a projected take of at least $25 million. On Friday, Ghost Rider: Spirit of Vengeance debuted with $7 million – just shy of The Vow’s first place finish. By Monday, however, the sequel should succumb to Nic Cage’s curse and drop to third behind holdover drama Safe House. The lingering success of The Vow proved a curse for the new romantic-comedy This Means War.  The would-be Valentine’s hit debuted in fourth place and is not expected to reach $20 million by Monday.  Finally, The Secret World of Arrietty may not have made the top five, but its projected four-day take of $7.5 million would double the highest debut of a Disney/Studio Ghibli animated film. Details and analysis tomorrow.