''Mean Girls'' wins the box office popularity contest
The Lindsay Lohan/Tina Fey comedy tops ''Man on Fire'' and ''13 Going on 30,'' debuting with $25 million
Denzel will stay at No. 1 this weekend
A strong debut by Tina Fey's ''Mean Girls'' will only net thrid place
De Niro, Kinnear, Romijn-Stamos may star in ''Godsend''
In the sci-fi thriller, a couple enlists a scientist to clone their murdered son