Teen vampire film Twilight has taken the lead with seven nominations at this year's MTV Movie Awards.
The film, based on the Stephanie Meyer book, is up for best movie and male breakthrough performance for its star, British actor Robert Pattinson.
It competes with Slumdog Millionaire in four categories, including best kiss. The Oscar-winner has six nods in all.
The awards will be hosted by Saturday Night Live star Andy Samberg on 31 May in Los Angeles.
Twilight, the story of a passionate romance between a mortal girl and an enigmatic vampire, is also nominated for best female for star Kristen Stewart, best fight and best song - for Paramore's Decode.
Taylor Lautner will also go up against his co-star Pattinson for best breakthrough male.
Slumdog Millionaire, a rags-to-riches story set in the slums on Mumbai, is up for best movie, male and female breakthrough performances, best kiss and best song - for AR Rahman's Jai Ho.
Its final nomination comes in a category for the most surprising scene of the year, for a sequence in which a young boy escapes from an outhouse to meet his movie idol.
Other nominees for the "golden popcorn" trophy for best movie include High School Musical 3: Senior Year and comic book epics The Dark Knight and Iron Man.
Heath Ledger has been nominated in the best villain category
Kate Winslet, who won an Oscar for her role in The Reader, is up for best female performance, along with Angelina Jolie for Wanted, Anne Hathaway for Bride Wars, Kristen Stewart for Twilight and Taraji P Henson for The Curious Case of Benjamin Button.
The nominees for best male performance include Christian Bale for The Dark Knight, Robert Downey Jr for Iron Man, Shia LaBeouf for Eagle Eye, Vin Diesel for Fast & Furious and High School Musical heartthrob Zac Efron.
Heath Ledger, who won a posthumous Oscar for his performance as the Joker in The Dark Knight, is also nominated in the best villain category.
For the first time, awards organisers are allowing MTV fans to choose the nominees, as well as vote for winners.
Votes can be cast on MTV's website until 27 May for all categories except best movie which will remain open until 31 May, when the show will air live in the US from the Gibson Amphitheatre.