Moviegoers were lured in to see Vince Vaughn and Jennifer Aniston duke it out on Friday as their not-so-romantic comedy The Break-Up captured the number one spot with an estimated $15.8M in its first day of release. Debuting stronger than expected, the Universal release beat out the $10.8M opening day of Vaughn's Wedding Crashers from last summer as well as the $9.7M first day of Aniston's hit Along Came Polly. With such a solid start, The Break-Up could collect $42-46M over the entire weekend session swiping the box office crown from the mutant collective.

X-Men: The Last Stand crumbled in its second Friday in theaters dropping a steep 78% to an estimated $10.2M. The disturbing fall was almost identical to the hefty 77% second-weekend crash that fellow Marvel pic The Hulk suffered three years ago. The super hero sequel should still deliver $32-35M for Fox this weekend putting it in the runnerup spot.

Popping its head into the top ten while still in limited release was the Al Gore global warming documentary An Inconvenient Truth which grossed an estimated $400,000 after expanding to 77 theaters from just four last weekend. The Paramount Classics title will take in over $1M for the frame with a sizzling per-theater average of more than $15,000.

Among holdovers, Friday-to-Friday declines were a sizable 49% for The Da Vinci Code and an encouraging 29% for Over the Hedge.

Be sure to check back on Sunday for the complete weekend box office report featuring official studio estimates.

Last Updated: June 3, 2006 at 12:15PM EDT

Written by Gitesh Pandya