will they show GTAV at E3?
I don't think Rockstar is attending this year, Take-Two is. Plus, the only time they have shown a GTA title was GTA III. If anything, we will get some news from a magazine or the newswire.
Isn't Max Payne 3 around 27GB? Yeah, no.
I think it was 35GB. The cutscenes aren't like the ones in RDR or GTA IV though, they are actual videos - which in return means no loading screens and a fast and unnoticeable switch between cutscenes and gameplay. Some of the cutscenes in Max Payne 3 reach up to 1GB I think.