Oscar winners Birdman, Whiplash and Theory of Everything are available on VOD and DVD, but you wouldn’t think that looking at their fantastic box office results this weekend. And that wasn’t all. Still Alice, The Imitation Game, American Sniper and even foreign language film nominees Leviathan and Wild Tales were basking in the afterglow of last Sunday’s Academy Awards. Fox Searchlight’s Birdman led with one of the highest weekend-to-weekend percent jump of 125%…