We now know who would be allowed on the stage at the Dolby Theater if “The Wolf of Wall Street” won Best Picture. The Motion Picture Academy has winnowed down the long list of credited producers to the four who actually did the work and deserve the credit. They are Martin Scorsese, Leonardo DiCaprio, Emmy Tillinger Koskoff, and Joey McFarland. Crossed off the list are producers who helped out or raised money in some way: Rick Yorn, Irwin Winkler, and Alexandra Milchan, Richard Barratta, Georgia Kacandes, Danny Dimbort, Riza Aziz, and Adam Somner. They will all be at the party, however. Now if someone could explain why Thelma Schoonmaker wasn’t nominated for Best Editing…