Iron Sky (2012)
A hard to find comic called Captain Gravity by Penny Farthing Press. A Rocketeer rip off to be sure but still a good read. I know its not a movie but its all i can think of.
Yes and no. Yes in that he is a Red Ronin version but no Terminus isn't really like RR since Terminus makes Galactus look like a boy scout in comparison.
Giant: Imus Champion (Marvel) Shaggy Man and Blockbuster (DC)
Titan: Giganta (DC)
Shrinkers: Dwarfstar (DC)
For both Power Armor and Giant: Terminus (Marvel)