Members of Box Office Mojo derby game predict:

Inside Man - $21.7 M
Stay Alive - $7.7 M

Gitesh Pandya from boxofficeguru.com predicts:

Inside Man - $21 M
Stay Alive - $6 M

Reagen Sulewski from boxofficeprophets.com predicts:

Inside Man - $26.1 M
Stay Alive - $9.4 M

boxofficereport.com predicts:

Inside Man - $24 M
Stay Alive - $8 M

and finally... Box Office Forecast by Brandon Gray (creator of Box Office Mojo):

Inside Man - $19.4 M
Stay Alive - $5.7 M