Looks like Iron Man held its own against GTA IV

As I said on Punchbutton last week and in my column on Saturday, there was some talk that GTA IV might siphon off moviegoers who would have otherwise gone out to see Iron Man.

With Iron Man raking in $100 million-plus in its opening weekend, I think we can put that theory to bed.

Like I mentioned in my column, though, I am curious to see the GTA IV sales numbers for the PS3 versus the Xbox 360. If the PS3 version of Grand Theft Auto outsold or even came close to the sales of the 360 version, that's a huge win for Sony.