Screen frame being the Display Bezel.http://h10032.www1.hp.com/ctg/Manual/c01573159.pdf
With the laptop closed, the top cover is the Display Enclosure.
Is it broken also?http://www.lapzone.com/servlet/the-54572/HP-Pavilion-G70-17-dsh-inch/Detail
Can you say OUCH! That's the cheapest I found, but it was a quick search. Hopefully you'll have better luck in searching.
The HP part number, for the Display Bezel of the HP G70 series, is;
The HP part number for the Display Enclosure is;
With built-in modem, Digital Media slot, AND -> with HDMI port,
WITH built-in modem, Digital Media slot, and NO -> HDMI port,
Hinge Kit; (2 each Hinges),
You have more damage than just the Display Bezel, I feel.
Access what damage you have, and I'll step by step guide you in replacing.
Just post back in a Comment.