Who will be grabbing some Golden Popcorn this summer? Entertainment Weekly has the exclusive first batch of nominees for the 2011 MTV Movie Awards, which will be hosted by Saturday Night Live star—and January Jones’ ex—Jason Sudeikis on June 5. At the 20th annual awards ceremony, Oscar winner Natalie Portman will battle Jennifer Aniston, Emma Stone, Emma Watson, and Kristen Stewart for Best Female Performance. Plus, two The Twilight Saga: Eclipse stars—Robert Pattinson and Taylor Lautner—will compete against Harry Potter’s Daniel Radcliffe, Oscar nominee Jesse Eisenberg for The Social Network, and teen heartthrob Zac Efron. This year, MTV announced a new category: Best Line from a Movie, which includes two quotes from Aaron Sorkin’s Academy Award-winning screenplay. Voting for this year’s MTV Movie Awards begins at 12:00 p.m. EST on Tuesday.